asp.net example

Linq Union Operator - How to get a sequence representing the union of two sequences

2011-12-11T12:52:00.000-08:00

Linq Union Operator - How to get a sequence representing the union of two sequences

LinqUnionOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums1 = { 1, 2, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10 };
        int[] nums2 = { 1, 3, 3, 5, 7, 9, 11 };

        Label1.Text = "Number List 1:....... <br />";
        foreach (int n in nums1)
        {
            Label1.Text += n.ToString() + ", ";
        }

        Label1.Text += "<br /><br />Number List 2:....... <br />";
        foreach (int n in nums2)
        {
            Label1.Text += n.ToString() + ", ";
        }

        var val = nums1.Union(nums2);
        Label2.Text = "<br />After Call Union Operator [nums1.Union(nums2)]:....... <br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + ", ";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Union Operator - How to get a sequence representing the union of two sequences</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Set Operator - Union
            <br />How to get a sequence representing the union of two sequences
        </h2>
        <hr width="625" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Union"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq ToList Operator - How to get a List from a sequence

2011-12-11T12:48:00.000-08:00

Linq ToList Operator - How to get a List from a sequence

LinqToListOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Kokosboom", "Korean mango", "Litchi chinensis", "Mafai", "Knoeper", "Mangostin" };
        
        Label1.Text = "Fruits List:....... <br />";
        foreach (string item in fruits)
        {
            Label1.Text += item.ToString() + "<br />";
        }

        List<string> query = (from f in fruits
                              where f.StartsWith("K")
                              orderby f
                              select f).ToList();

       Label2.Text = "Query Result Type: " + query.GetType() + "<br /><br />";
       
       Label2.Text += "Query Result:.... <br />";
       for (int i = 0; i < query.Count; i++)
        {
            Label2.Text += query[i].ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq ToList Operator - How to get a List from a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Conversion Operator - ToList
            <br />How to get a List from a sequence
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MidnightBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Crimson"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - ToList"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq ToArray Operator - How to get an Array from a sequence

2011-12-11T12:44:00.000-08:00

Linq ToArray Operator - How to get an Array from a sequence

LinqToArrayOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Flor de Jamaica", "Fraise", "Fruit du dragon", "Grape", "Gulupa", "Kathon" };
        
        Label1.Text = "Fruits List:....... <br />";
        foreach (string item in fruits)
        {
            Label1.Text += item.ToString() + "<br />";
        }

       string[] query = (from f in fruits
                         where f.StartsWith("F")
                         orderby f
                         select f).ToArray();

        Label2.Text = "Query Result: Items Count - " + query.Length.ToString() + "<br />";
        for (int i = 0; i < query.Length; i++)
        {
            Label2.Text += query[i].ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq ToArray Operator - How to get an Array from a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Conversion Operator - ToArray
            <br />How to get an Array from a sequence
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MidnightBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - ToArray"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq OfType Operator - How to filter elements in a sequence of a given type

2011-12-11T12:40:00.000-08:00

Linq OfType Operator - How to filter elements in a sequence of a given type

LinqOfTypeOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList items = new ArrayList();
        items.Add(1);
        items.Add("Crataeva marmelos");
        items.Add(2);
        items.Add("Durian Belanda");
        items.Add(3);
        items.Add("Figuier commun");
        
        Label1.Text = "ArrayList (items):....... <br />";
        foreach (var item in items)
        {
            Label1.Text += item.ToString() + "<br />";
        }

        IEnumerable<int> query = items.OfType<int>().Select(i => i);

        Label2.Text = "Query Result After Call OfType Operator:....... <br />";
        foreach (int item in query)
        {
            Label2.Text += item.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq OfType Operator - How to filter elements in a sequence of a given type</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Conversion Operator - OfType
            <br />How to filter elements in a sequence of a given type
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Purple"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - OfType"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Intersect Operator - How to get a sequence representing the intersection of two sequences

2011-12-11T12:36:00.000-08:00

Linq Intersect Operator - How to get a sequence representing the intersection of two sequences

LinqIntersectOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums1 = { 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 8, 9, 9, 10 };
        int[] nums2 = { 1, 3, 3, 5, 7, 9, 9, 11 };

        Label1.Text = "Number List 1 (nums1):....... <br />";
        foreach (int n in nums1)
        {
            Label1.Text += n.ToString() + ", ";
        }

        Label1.Text += "<br /><br />Number List 2 (nums2):....... <br />";
        foreach (int n in nums2)
        {
            Label1.Text += n.ToString() + ", ";
        }

        var val = nums1.Intersect(nums2);
        Label2.Text = "<br />After Call Intersect Operator [nums1.Intersect(nums2)]:....... <br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + ", ";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Intersect Operator - How to get a sequence representing the intersection of two sequences</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Set Operator - Intersect
            <br />How to get a sequence representing the intersection of two sequences
        </h2>
        <hr width="675" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Purple"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Intersect"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Except Operator - How to get a sequence representing the difference between two sequences

2011-12-11T12:32:00.000-08:00

Linq Except Operator - How to get a sequence representing the difference between two sequences

LinqExceptOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums1 = { 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 9, 9, 10 };
        int[] nums2 = { 1, 3, 3, 5, 7, 9, 9, 11, 13, 13 };

        Label1.Text = "Number List 1 (nums1):....... <br />";
        foreach (int n in nums1)
        {
            Label1.Text += n.ToString() + ", ";
        }

        Label1.Text += "<br /><br />Number List 2 (nums2):....... <br />";
        foreach (int n in nums2)
        {
            Label1.Text += n.ToString() + ", ";
        }

        var val = nums1.Except(nums2);
        Label2.Text = "<br />After Call Except Operator [nums1.Except(nums2)]:....... <br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + ", ";
        }

        var val2 = nums2.Except(nums1);
        Label2.Text += "<br /><br />After Call Except Operator [nums2.Except(nums1)]:....... <br />";
        foreach (int n in val2)
        {
            Label2.Text += n.ToString() + ", ";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Except Operator - How to get a sequence representing the difference between two sequences</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Set Operator - Except
            <br />How to get a sequence representing the difference between two sequences
        </h2>
        <hr width="675" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumSeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Purple"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Except"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Cast Operator - How to cast elements in a sequence to a given type

2011-12-11T12:28:00.000-08:00

Linq Cast Operator - How to cast elements in a sequence to a given type

LinqCastOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList fruits = new ArrayList();
        fruits.Add("Afrikanische Malve");
        fruits.Add("Aprikosenbaum");
        fruits.Add("Averrhoa carambola");
        fruits.Add("Cerasus avium");
        fruits.Add("Date palm");
        
        Label1.Text = "ArrayList (fruits):....... <br />";
        foreach (string item in fruits)
        {
            Label1.Text += item.ToString() + "<br />";
        }

        IEnumerable<string> query = fruits.Cast<string>().Select(f => f);
        
        Label2.Text = "Query Result:....... <br />";
        foreach (string item in query)
        {
            Label2.Text += item.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Cast Operator - How to cast elements in a sequence to a given type</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Conversion Operator - Cast
            <br />How to cast elements in a sequence to a given type
        </h2>
        <hr width="575" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumSeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Purple"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Cast"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq SingleOrDefault operator with condition

2011-12-10T08:20:00.000-08:00

How to use Linq SingleOrDefault operator with condition

LinqSingleOrDefaultOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Zoete sinaasappel", "Pyrus communis", "Sandoricum indicum", "Strawberry pear" };

        var val = from f in fruits
                                 select f;

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling SingleOrDefault Operator With Condition [EndsWith('communis')]: " + val.SingleOrDefault(f => f.EndsWith("communis"));
        Label2.Text += "<br /><br />After Calling SingleOrDefault Operator With Condition [EndsWith('false')]: " + val.SingleOrDefault(f => f.EndsWith("false"));
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq SingleOrDefault operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - SingleOrDefault With Condition
            <br />How to get the single element of a sequence or a
            <br /> default value if no element is found
        </h2>
        <hr width="725" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="IndianRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="CornflowerBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - SingleOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq SingleOrDefault Operator - How to get the single element of a sequence or a default value if no element is found

2011-12-10T08:16:00.000-08:00

Linq SingleOrDefault Operator - How to get the single element of a sequence or a default value if no element is found

LinqSingleOrDefaultOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Manilkara zapota", "Litchi chevelu", "Orange Frucht", "Pitahaya roja" };

        var itemEndsWithFrucht = from f in fruits
                                 where f.EndsWith("Frucht")
                                 select f;

        var itemEndsWithFalse = from f in fruits
                                where f.EndsWith("False")
                                 select f;

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling SingleOrDefault Operator [itemEndsWithFrucht]: " + itemEndsWithFrucht.SingleOrDefault();
        Label2.Text += "<br /><br />After Calling SingleOrDefault Operator [itemEndsWithFalse]: " + itemEndsWithFalse.SingleOrDefault();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq SingleOrDefault Operator - How to get the single element of a sequence or a default value if no element is found</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - SingleOrDefault
            <br />How to get the single element of a sequence or a
            <br /> default value if no element is found
        </h2>
        <hr width="525" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="CornflowerBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - SingleOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq Single operator with condition

2011-12-10T08:12:00.000-08:00

How to use Linq Single operator with condition

LinqSingleOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Dragon eye", "Fico comune", "Gewone peer", "Guayaba manzana", "Kiwi fruit" };

        var val = from f in fruits
                  select f;

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Single Operator With Condition [StartsWith('Gewone')]: <br />";
        Label2.Text += val.Single(f => f.StartsWith("Gewone"));
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq Single operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - Single With Condition
            <br />How to get the single element of a sequence
        </h2>
        <hr width="650" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="OrangeRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SkyBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Single"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Single Operator - How to get the single element of a sequence

2011-12-10T08:08:00.001-08:00

Linq Single Operator - How to get the single element of a sequence

LinqSingleOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Cambodian palm", "Burmese Grape", "Citrus maxima", "Custard apple" };

        var itemEndsWithGrape = from f in fruits
                                           where f.EndsWith("Grape")
                                           select f;

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Single Operator: " + itemEndsWithGrape.Single();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Single Operator - How to get the single element of a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - Single
            <br />How to get the single element of a sequence
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SkyBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Single"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq SequenceEqual Operator - How to compare two sequences to see if they are equivalent

2011-12-10T08:04:00.001-08:00

Linq SequenceEqual Operator - How to compare two sequences to see if they are equivalent

LinqSequenceEqualOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruitsList1 = { "Citrus sinensis", "Diospyros blancoi", "Coconut palm" };
        string[] fruitsList2 = { "Jambosa jambos", "Korean mango", "Malabar plum" };
        string[] fruitsList3 = { "Citrus sinensis", "Diospyros blancoi", "Coconut palm" };

        Label1.Text = "Fruits List 1:....... <br />";
        foreach (string names in fruitsList1)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label1.Text += "<br />Fruits List 2:....... <br />";
        foreach (string names in fruitsList2)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label1.Text += "<br />Fruits List 3:....... <br />";
        foreach (string names in fruitsList3)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling SequenceEqual Operator [fruitsList1.Equals(fruitsList2)]: " + fruitsList1.SequenceEqual(fruitsList2);
        Label2.Text += "<br />After Calling SequenceEqual Operator [fruitsList1.Equals(fruitsList3)]: " + fruitsList1.SequenceEqual(fruitsList3);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq SequenceEqual Operator - How to compare two sequences to see if they are equivalent</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - SequenceEqual
            <br />How to compare two sequences to see if they are equivalent
        </h2>
        <hr width="575" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - SequenceEqual"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Repeat Operator - How to generate a sequence by repeating an item a given number of times

2011-12-10T07:59:00.000-08:00

Linq Repeat Operator - How to generate a sequence by repeating an item a given number of times

LinqRepeatOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        var repeatedText = Enumerable.Repeat("asp.net example",5);

        Label1.Text = "Repeated Item....... <br />";
        foreach (string s in repeatedText)
        {
            Label1.Text += s.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Repeat Operator - How to generate a sequence by repeating an item a given number of times</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator
            <br /> Generation Operator - Repeat
            <br />How to generate a sequence by
            <br /> repeating an item a given number of times
        </h2>
        <hr width="425" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Repeat"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Range Operator - How to generate a sequence of numbers given a range

2011-12-10T07:55:00.001-08:00

Linq Range Operator - How to generate a sequence of numbers given a range

LinqRangeOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        var nums = Enumerable.Range(100,10);

        Label1.Text = "Sequence of numbers....... <br />";
        foreach (int number in nums)
        {
            Label1.Text += number.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Range Operator - How to generate a sequence of numbers given a range</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Generation Operator - Range
            <br />How to generate a sequence of numbers given a range
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Range"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq ElementAtOrDefault Operator - How to get the element at a given index in a sequence or a default value if the index is out of range

2011-12-10T07:51:00.001-08:00

Linq ElementAtOrDefault Operator - How to get the element at a given index in a sequence or a default value if the index is out of range

LinqElementAtOrDefaultOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Anón", "Annona reticulata", "Atte", "Bramble fruit" };

        string elementAtOrDefaultIndex1 = (from f in fruits
                                           select f).ElementAtOrDefault(1);

        string elementAtOrDefaultIndex5 = (from f in fruits
                                           select f).ElementAtOrDefault(5);

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling ElementAtOrDefault(1) Operator: " + elementAtOrDefaultIndex1;
        Label2.Text += "<br /><br />After Calling ElementAtOrDefault(5) Operator: " + elementAtOrDefaultIndex5;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq ElementAtOrDefault Operator - How to get the element at a given index in a sequence or a default value if the index is out of range</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - ElementAtOrDefault
            <br />How to get the element at a given index in a sequence or
            <br /> a default value if the index is out of range
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - ElementAtOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq DefaultIfEmpty Operator - How to create a default element for an empty sequence

2011-12-10T07:46:00.000-08:00

Linq DefaultIfEmpty Operator - How to create a default element for an empty sequence

LinqDefaultIfEmptyOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Lusho fruit", "Cambodian palm", "Chinesische Haselnuss", "Jambosa jambos", "Chinesische Jujube" };

        var itemStartWithC = from f in fruits
                             where f.StartsWith("C")
                             select f;
        var itemStartWithX = from f in fruits
                             where f.StartsWith("X")
                             select f;

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "Fruits Start With(C):....... <br />";
        foreach (string names in itemStartWithC.DefaultIfEmpty("Default Value"))
        {
            Label2.Text += names.ToString() + "<br />";
        }

        Label2.Text += "<br />Fruits Start With(X):....... <br />";
        foreach (string names in itemStartWithX.DefaultIfEmpty("Default Value"))
        {
            Label2.Text += names.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq DefaultIfEmpty Operator - How to create a default element for an empty sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - DefaultIfEmpty
            <br />How to create a default element for an empty sequence
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - DefaultIfEmpty"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Concat Operator - How to concatenate two sequences into one sequence

2011-12-10T07:41:00.000-08:00

Linq Concat Operator - How to concatenate two sequences into one sequence

LinqConcatOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruitsStartsWithA = { "Actinidia deliciosa", "Albero del pane", "Annona muricata" };
        string[] fruitsStartsWithB = { "Brazilian pawpaw", "Bramble fruit" };

        var allFruits = fruitsStartsWithA.Concat(fruitsStartsWithB);

        Label1.Text = "Fruits Starts With 'A' List:....... <br />";
        foreach (string names in fruitsStartsWithA)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label1.Text += "<br />Fruits Starts With 'B' List:....... <br />";
        foreach (string names in fruitsStartsWithB)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "All Fruits After Calling Concat Operator:....... <br />";
        foreach (string names in allFruits)
        {
            Label2.Text += names.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Concat Operator - How to concatenate two sequences into one sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Concat
            <br />How to concatenate two sequences into one sequence
        </h2>
        <hr width="525" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Concat"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq TakeWhile Operator - How to get a sequence that takes items that meet an expression

2011-12-09T08:40:00.001-08:00

Linq TakeWhile Operator - How to get a sequence that takes items that meet an expression

LinqTakeWhileOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums = { 129,56,21,9,421,169,26,89 };

        IEnumerable<int> val = nums.OrderBy(n => n).TakeWhile(n=> n<50);

        Label1.Text = "Numbers List: <br />";

        foreach (int i in nums)
        {
            Label1.Text += i.ToString() + "<br />";
        }

        Label2.Text = "After Calling TakeWhile(number<50) Operator:<br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq TakeWhile Operator - How to get a sequence that takes items that meet an expression</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Partitioning Operator - TakeWhile
            <br />How to get a sequence that takes items that meet an expression
        </h2>
        <hr width="650" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="OrangeRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SaddleBrown"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - TakeWhile"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Take Operator - How to get a sequence that takes a given number of items

2011-12-09T08:35:00.000-08:00

Linq Take Operator - How to get a sequence that takes a given number of items

LinqTakeOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums = { 255,21,455,41,233,169,26,123 };

        IEnumerable<int> val = nums.OrderByDescending(n => n).Take(3);

        Label1.Text = "Numbers List: <br />";

        foreach (int i in nums)
        {
            Label1.Text += i.ToString() + "<br />";
        }

        Label2.Text = "After Calling Take(3) Operator: Top 3 numbers<br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Take Operator - How to get a sequence that takes a given number of items</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Partitioning Operator - Take
            <br />How to get a sequence that takes a given number of items
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkCyan"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Take"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq LastOrDefault operator with condition

2011-12-09T08:31:00.001-08:00

How to use Linq LastOrDefault operator with condition

LinqLastOrDefaultOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Shaddock", "Starfruit", "Zibetbaum", "Tasajo", "Zoete kers", "Water apple" };

        string lastOrDefaultFruitsItemStartsWithZ = (from f in fruits
                                                     select f).LastOrDefault(f => f.StartsWith("Z"));

        string lastOrDefaultFruitsItemStartsWithX = (from f in fruits
                                                     select f).LastOrDefault(f => f.StartsWith("X"));

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling LastOrDefault Operator With Condition [StartsWith('Z')]: " + lastOrDefaultFruitsItemStartsWithZ;
        Label2.Text += "<br /><br />After Calling LastOrDefault Operator With Condition [StartsWith('X')]: " + lastOrDefaultFruitsItemStartsWithX;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq LastOrDefault operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator
            <br /> LastOrDefault With Condition
            <br />How to get the last element of a sequence or
            <br /> a default value if no element is found
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkCyan"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - LastOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq LastOrDefault Operator - How to get the last element of a sequence or a default value if no element is found

2011-12-09T08:26:00.000-08:00

Linq LastOrDefault Operator - How to get the last element of a sequence or a default value if no element is found

LinqLastOrDefaultOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Litchibaum", "Litschipflaume", "Mangistan", "Manzana", "Matum", "Malay apple" };
        string[] emptyArray = {};

        string lastOrDefaultFruitsItem = (from f in fruits
                                           select f).LastOrDefault();

        string lastOrDefaultEmptyArrayItem = (from f in emptyArray
                                               select f).LastOrDefault();

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling LastOrDefault Operator [fruits]: " + lastOrDefaultFruitsItem;
        Label2.Text += "<br /><br />After Calling LastOrDefault Operator [emptyArray]: " + lastOrDefaultEmptyArrayItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq LastOrDefault Operator - How to get the last element of a sequence or a default value if no element is found</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - LastOrDefault
            <br />How to get the last element of a sequence or
            <br /> a default value if no element is found
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkSeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - LastOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq Last Operator with condition

2011-12-09T08:20:00.000-08:00

How to use Linq Last Operator with condition

LinqLastOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Grenadier", "Fraisier", "Banane", "Common fig", "Borassus flabellifer", "Chicozapote" };

        string lastItem = (from f in fruits
                                select f).Last(f=>f.StartsWith("B"));

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Last Operator With Condition [StartsWith('B')]: <br />" + lastItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq Last Operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator
            <br /> Element Operator - Last With Condition
            <br />How to get the last element of a sequence
        </h2>
        <hr width="450" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Navy"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DeepPink"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Last"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Last Operator - How to get the last element of a sequence

2011-12-09T08:14:00.000-08:00

Linq Last Operator - How to get the last element of a sequence

LinqLastOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Achras zapota", "Appelsien", "Atte", "Bouea burmanica", "Buna", "Cerezo" };

        string lastItem = (from f in fruits
                                select f).Last();

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Last Operator: " + lastItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Last Operator - How to get  the last element of a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - Last
            <br />How to get  the last element of a sequence
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DeepPink"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="PaleVioletRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Last"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq FirstOrDefault operator with condition

2011-12-09T08:10:00.001-08:00

How to use Linq FirstOrDefault operator with condition

LinqFirstOrDefaultOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Manzana velvet", "Naranjo dulce", "Lychee", "Naranja", "Lamyai", "Kathon" };

        string firstOrDefaultFruitsItemStartsWithN = (from f in fruits
                                                     select f).FirstOrDefault(f => f.StartsWith("N"));

        string firstOrDefaultFruitsItemStartsWithD = (from f in fruits
                                                     select f).FirstOrDefault(f => f.StartsWith("D"));

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling FirstOrDefault Operator With Condition [StartsWith('N')]: " + firstOrDefaultFruitsItemStartsWithN;
        Label2.Text += "<br /><br />After Calling FirstOrDefault Operator With Condition [StartsWith('D')]: " + firstOrDefaultFruitsItemStartsWithD;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq FirstOrDefault operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator
            <br /> FirstOrDefault With Condition
            <br />How to get the first element of a sequence
            <br /> or a default value if no element is found
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SaddleBrown"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DodgerBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - FirstOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq FirstOrDefault Operator - How to get the first element of a sequence or a default value if no element is found

2011-12-09T08:05:00.000-08:00

Linq FirstOrDefault Operator - How to get the first element of a sequence or a default value if no element is found

LinqFirstOrDefaultOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Hibiscus sabdariffa", "Jambosa jambos", "Kasjoema", "Kokospalm", "Lansibaum" };
        string[] emptyArray = {};

        string firstOrDefaultFruitsItem = (from f in fruits
                                           select f).FirstOrDefault();

        string firstOrDefaultEmptyArrayItem = (from f in emptyArray
                                           select f).FirstOrDefault();

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling FirstOrDefault Operator [fruits]: " + firstOrDefaultFruitsItem;
        Label2.Text += "<br /><br />After Calling FirstOrDefault Operator [emptyArray]: " + firstOrDefaultEmptyArrayItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq FirstOrDefault Operator - How to get the first element of a sequence or a default value if no element is found</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - FirstOrDefault
            <br />How to get the first element of a sequence
            <br /> or a default value if no element is found
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="HotPink"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Indigo"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - FirstOrDefault"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq First Operator with condition

2011-12-09T08:01:00.000-08:00

How to use Linq First Operator with condition

LinqFirstOperatorWithCondition.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Litchi chevelu", "Mangostino", "Actinidia", "Albicocco", "Breadnut", "Citrus maxima" };

        string firstItem = (from f in fruits
                                select f).First(f=>f.StartsWith("A"));

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling First Operator With Condition [StartsWith('A')]: <br />" + firstItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq First Operator with condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator
            <br /> Element Operator - First With Condition
            <br />How to get the first element of a sequence
        </h2>
        <hr width="450" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="RoyalBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Crimson"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - First"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq First Operator - How to get the first element of a sequence

2011-12-09T07:56:00.000-08:00

Linq First Operator - How to get the first element of a sequence

LinqFirstOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Stervrucht", "Punica granatum", "Persea americana", "Oranger", "Marian plum", "Mandarin" };

        string firstItem = (from f in fruits
                                select f).First();

        Label1.Text = "Fruits List: <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling First Operator: " + firstItem;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq First Operator - How to get the first element of a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - First
            <br />How to get the first element of a sequence
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="HotPink"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Indigo"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - First"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq ElementAt Operator - How to get the element at a given index in a sequence

2011-12-09T07:50:00.000-08:00

Linq ElementAt Operator - How to get the element at a given index in a sequence

LinqElementAtOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Fresa", "Feige", "Grosella espinosa", "Jujube", "Kraton", "Longkong" };

        string elementAt2 = (from f in fruits
                            select f).ElementAt(2);

        Label1.Text = "Fruits List:....... <br />";
        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling ElementAt(2) Operator: " + elementAt2;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq ElementAt Operator - How to get the element at a given index in a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Element Operator - ElementAt
            <br />How to get the element at a given index in a sequence
        </h2>
        <hr width="600" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - ElementAt"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq SkipWhile Operator - How to get a sequence that skips items that do not meet an expression

2011-12-08T07:44:00.001-08:00

Linq SkipWhile Operator - How to get a sequence that skips items that do not meet an expression

LinqSkipWhileOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] nums = { 51,210,55,29,125,15,177,50 };

        IEnumerable<int> val = nums.OrderBy(n=> n).SkipWhile(n => n<100);

        Label1.Text = "Numbers List: <br />";

        foreach (int i in nums)
        {
            Label1.Text += i.ToString() + "<br />";
        }

        Label2.Text = "After Calling SkipWhile(number<100) Operator: <br />";
        foreach (int n in val)
        {
            Label2.Text += n.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq SkipWhile Operator - How to get a sequence that skips items that do not meet an expression</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Partitioning Operator - SkipWhile
            <br />How to get a sequence that skips items that do not meet an expression
        </h2>
        <hr width="650" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOliveGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - SkipWhile"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Skip Operator - How to get a sequence that skips a given number of items

2011-12-08T07:39:00.000-08:00

Linq Skip Operator - How to get a sequence that skips a given number of items

LinqSkipOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Sternfrucht", "Syzygium jambos", "Wild mangosteen", "Yaca", "Zoetzak", "Witte druif" };

        IEnumerable<string> val = (from f in fruits
                                   select f).Skip(2);

        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Skip(2) Operator: <br />";
        foreach (string n in val)
        {
            Label2.Text += n.ToString() + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Skip Operator - How to get a sequence that skips a given number of items</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Partitioning Operator - Skip
            <br />How to get a sequence that skips a given number of items
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOliveGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Indigo"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Skip"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Reverse Operator - How to reverse the order of the items in a sequence

2011-12-08T07:32:00.000-08:00

Linq Reverse Operator - How to reverse the order of the items in a sequence

LinqReverseOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Aprikose", "Coffee shrub of Arabia", "Bouea burmanica", "Kathal", "Jujube", "Lichi" };

        IEnumerable<string> val = fruits.Reverse();
        
        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling The Reverse Operator<br />";

        foreach (string n in val)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Reverse Operator - How to reverse the order of the items in a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Reverse
            <br />How to reverse the order of the items in a sequence
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Maroon"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SkyBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Reverse"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Distinct Operator - How to get a sequence without duplicate items

2011-12-08T07:28:00.000-08:00

Linq Distinct Operator - How to get a sequence without duplicate items

LinqDistinctOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Junco", "Longan", "Junco", "Maprang", "Longan", "Junco" };

        IEnumerable<string> val = (from f in fruits
                                  select f).Distinct();
        
        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling The Distinct Operator<br />";

        foreach (string n in val)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Distinct Operator - How to get a sequence without duplicate items</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Distinct
            <br />How to get a sequence without duplicate items
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="PaleVioletRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="RoyalBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Distinct"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Contains Operator - How to determine if a sequence contains a given item

2011-12-08T07:24:00.001-08:00

Linq Contains Operator - How to determine if a sequence contains a given item

LinqContainsOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Mabolo", "Mandarine", "Mango", "Mangue", "Naranjo", "Patilla" };

        Boolean isContainsPatilla = (from f in fruits
                                   select f).Any(f => f.Contains("Patilla"));

        Boolean isContainsSusina = (from f in fruits
                                   select f).Any(f => f.StartsWith("Susina"));

        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Contains Operator [Contains('Patilla')]: " + isContainsPatilla.ToString();
        Label2.Text += "<br /><br />After Calling Contains Operator [Contains('Susina')]: " + isContainsSusina.ToString();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Contains Operator - How to determine if a sequence contains a given item</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Contains
            <br />How to determine if a sequence contains a given item
        </h2>
        <hr width="550" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Red"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Contains"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Any Operator - How to determine if any items in a sequence meet a condition

2011-12-08T07:19:00.000-08:00

Linq Any Operator - How to determine if any items in a sequence meet a condition

LinqAnyOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Albicocco", "Brotfruchtbaum", "Chicozapote", "Coffea arabica", "Guanabana", "Lansibaum" };

        Boolean isAnyStratWithL = (from f in fruits
                                select f).Any(f => f.StartsWith("L"));

        Boolean isAnyStratWithZ = (from f in fruits
                                select f).Any(f => f.StartsWith("Z"));

        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling Any Operator [StartsWith('L')]: " + isAnyStratWithL.ToString();
        Label2.Text += "<br /><br />After Calling Any Operator [StartsWith('Z')]: " + isAnyStratWithZ.ToString();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Any Operator - How to determine if any items in a sequence meet a condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Quantifier Operator - Any
            <br />How to determine if any items in a sequence meet a condition
        </h2>
        <hr width="585" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Red"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Any"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq All Operator - How to determine if all items in a sequence meet a condition

2011-12-08T07:14:00.000-08:00

Linq All Operator - How to determine if all items in a sequence meet a condition

LinqAllOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Abricotier", "Abrikoos", "Actinidia", "Aguacate", "Alupag", "Anguria" };

        Boolean isStratWithA = (from f in fruits
                                select f).All(f => f.StartsWith("A"));

        Boolean isStratWithB = (from f in fruits
                                select f).All(f => f.StartsWith("B"));

        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "After Calling All Operator [StartsWith('A')]: " + isStratWithA.ToString();
        Label2.Text += "<br /><br />After Calling All Operator [StartsWith('B')]: " + isStratWithB.ToString();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq All Operator - How to determine if all items in a sequence meet a condition</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator: Quantifier Operator - All
            <br />How to determine if all items in a sequence meet a condition
        </h2>
        <hr width="575" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Crimson"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="RoyalBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - All"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Sum Operator - How to get sums the numbers in a sequence

2011-12-07T07:58:00.001-08:00

Linq Sum Operator - How to get sums the numbers in a sequence

LinqSumOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] prices = {125,442,21,89,142,334,19};

        Label1.Text = "Price List: <br />";

        foreach (int n in prices)
        {
            Label1.Text += n.ToString() + "<br />";
        }

        Label2.Text = "Sum of the Prices: " + prices.Sum().ToString(); ;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Sum Operator - How to get sums the numbers in a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Sum
            <br />How to get sums the numbers in a sequence
        </h2>
        <hr width="425" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkOrchid"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="SeaGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Sum"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq select operator - How to create a projection of parts of a sequence

2011-12-07T07:53:00.000-08:00

Linq select operator - How to create a projection of parts of a sequence

LinqSelectOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Abricot", "Coconut palm", "Ficus carica", "Guanabana", "Albaricoque" };

        IEnumerable<string> val = from f in fruits
                                  where f.StartsWith("A")
                                  select f;
        
        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "Filtered Fruits: StartsWith 'A'<br />";

        foreach (string n in val)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq select operator - How to create a projection of parts of a sequence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - select
            <br />How to create a projection of parts of a sequence
        </h2>
        <hr width="450" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkMagenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - select"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq orderby operator - How to order a sequence by values in ascending order

2011-12-07T07:49:00.000-08:00

Linq orderby operator - How to order a sequence by values in ascending order

LinqOrderByOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Karambole", "Jabong", "Mandarijn", "Pitahaya", "Nektarine", "Banana" };

        IEnumerable<string> val = from f in fruits
                                  where f.Count()>6
                                  orderby f
                                  select f;
        
        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "Filtered And Ascending Ordered Fruits: Count()>6 <br />";

        foreach (string n in val)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq orderby operator - How to order a sequence by values in ascending order</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - orderby
            <br />How to order a sequence by values in ascending order
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Olive"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - orderby"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq OrderByDescending Operator - How to order a sequence by values in descending order

2011-12-07T07:44:00.000-08:00

Linq OrderByDescending Operator - How to order a sequence by values in descending order

LinqOrderByDescendingOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] fruits = { "Birne", "Achras zapota", "Wood apple", "Tamarindenbaum", "Kasjoema", "Coffee" };

        IEnumerable<string> val = from f in fruits
                                  where f.Count()>5
                                  orderby f descending
                                  select f;
        
        Label1.Text = "Fruits List: <br />";

        foreach (string names in fruits)
        {
            Label1.Text += names.ToString() + "<br />";
        }

        Label2.Text = "Filtered And Descending Ordered Fruits: Count()>5 <br />";

        foreach (string n in val)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq OrderByDescending Operator - How to order a sequence by values in descending order</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - OrderByDescending
            <br />How to order a sequence by values in descending order
        </h2>
        <hr width="500" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Magenta"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="MediumBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - OrderByDescending"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Min Operator - How to get the minimum number of a sequence of numbers

2011-12-07T07:39:00.000-08:00

Linq Min Operator - How to get the minimum number of a sequence of numbers

LinqMinOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] numbers = {47,13,16,54,41,32,99};

        Label1.Text = "Numbers List: <br />";

        foreach (int n in numbers)
        {
            Label1.Text += n.ToString() + "<br />";
        }

        Label2.Text = "Minimum Value in Numbers: " + numbers.Min().ToString(); ;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Min Operator - How to get the minimum number of a sequence of numbers</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Min
            <br />How to get the minimum number
            <br /> of a sequence of numbers
        </h2>
        <hr width="375" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="Violet"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="OliveDrab"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Min"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Max Operator - How to get the maximum number of a sequence of numbers

2011-12-07T07:35:00.000-08:00

Linq Max Operator - How to get the maximum number of a sequence of numbers

LinqMaxOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        int[] myNums = {27,26,19,56,47,23,33};

        Label1.Text = "Numbers List: <br />";

        foreach (int n in myNums)
        {
            Label1.Text += n.ToString() + "<br />";
        }

        Label2.Text = "Maximum Value in Numbers: " + myNums.Max().ToString(); ;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Max Operator - How to get the maximum number of a sequence of numbers</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Max
            <br />How to get the maximum number
            <br /> of a sequence of numbers
        </h2>
        <hr width="375" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="X-Large"
             ForeColor="IndianRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DodgerBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Max"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

How to use Linq

2011-12-07T07:30:00.000-08:00

How to use Linq

HowToUseLinq.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] colors = {"Red","Green","Blue","Yellow","AliceBlue","Sky","SeaGreen","Orange","OrangeRed" };
        IEnumerable<string> filteredColors = Enumerable.Where(colors, n => n.Length >= 6);

        Label1.Text = "Color List <br />";

        foreach (string n in colors)
        {
            Label1.Text += n + "<br />";
        }

        Label2.Text = "Filtered Colors: Length>=6<br />";

        foreach (string n in filteredColors)
        {
            Label2.Text += n + "<br />";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use Linq</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            How to use Linq in asp.net
        </h2>
        <hr width="325" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="Large"
             ForeColor="HotPink"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="X-Large"
             ForeColor="DarkGreen"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Filter Colors"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Linq Count Operator - How to get the number of the items in a sequence as an int

2011-12-03T12:13:00.000-08:00

Linq Count Operator - How to get the number of the items in a sequence as an int

LinqCountOperator.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[] colors = {"Red","SkyBlue","SeaGreen","Orange","Salmon" };
        IEnumerable<string> filteredColors = from color in colors
                                             where color.StartsWith("S")
                                             select color ;

        Label1.Text = "Color List: <br />";

        foreach (string n in colors)
        {
            Label1.Text += n + "<br />";
        }

        Label2.Text = "Filtered Colors: StartsWith(S) <br />";

        foreach (string n in filteredColors)
        {
            Label2.Text += n + "<br />";
        }
        Label2.Text += "<br />Total Filtered Colors: " + filteredColors.Count() +"<br />";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Linq Count Operator - How to get the number of the items in a sequence as an int</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:DarkBlue; font-style:italic;">
            Linq Standard Query Operator - Count
            <br />How to get the number of the items
            <br /> in a sequence as an int
        </h2>
        <hr width="375" align="left" color="CornFlowerBlue" />
        <asp:Label
             ID="Label1"
             runat="server"
             Font-Size="Large"
             ForeColor="OrangeRed"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Label
             ID="Label2"
             runat="server"
             Font-Size="Large"
             ForeColor="DodgerBlue"
             Font-Italic="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Linq Query Operator - Count"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Stack ToArray() Method - How to copy the Stack to a new array

2011-10-16T12:53:00.001-07:00

Stack ToArray() Method - How to copy the Stack to a new array

StackToArrayMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("DarkRed");
        colors.Push("DarkGreen");
        colors.Push("DarkBlue");
        colors.Push("DarkSalmon");
        colors.Push("DarkViolet");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=DarkViolet>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        var colorsArray = colors.ToArray();

        Label1.Text += "<br /><br />After Call Stack.ToArray() method";
        Label1.Text += "<br />Array Elements...";
        Label1.Text += "<font color=DarkViolet>";
        for (int i = 0; i < colorsArray.Length; i++)
        {
            Label1.Text += "<br />" + colorsArray[i].ToString();
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Stack ToArray() Method - How to copy the Stack to a new array</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack ToArray() Method
            <br /> How to copy the Stack to a new array
        </h2>
        <hr width="400" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack ToArray() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

Stack Push() Method - How to insert an object at the top of the Stack

2011-10-16T12:48:00.000-07:00

Stack Push() Method - How to insert an object at the top of the Stack

StackPushMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Blue");
        colors.Push("DodgerBlue");
        colors.Push("SkyBlue");
        colors.Push("LightBlue");
        colors.Push("DeepSkyBlue");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=DarkOrchid>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Push("MidnightBlue");

        Label1.Text += "<br /><br />After inserting an object at the top of the Stack";
        Label1.Text += "<br />using Push(object) method. Now Stack Elements...<br />";
        Label1.Text += "<font color=DarkOrchid>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Stack Push() Method - How to insert an object at the top of the Stack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Push() Method
            <br /> How to insert an object at the top of the Stack
        </h2>
        <hr width="475" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOliveGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Push() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

Stack Pop() Method - How to remove and get the object at the top of the Stack

2011-10-16T12:44:00.001-07:00

Stack Pop() Method - How to remove and get the object at the top of the Stack

StackPopMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Orange");
        colors.Push("DarkOrange");
        colors.Push("OrangeRed");
        colors.Push("Salmon");
        colors.Push("DarkSalmon");
        colors.Push("LightSalmon");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=DodgerBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />Remove and get the object at the top of the Stack";
        Label1.Text += "<br />using Pop() method.... <br />";
        Label1.Text += "<font color=DarkBlue>";
        Label1.Text += colors.Pop().ToString();
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />After Call Pop() Method, Now Stack Elements... ";
        Label1.Text += "<font color=DeepSkyBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Stack Pop() Method - How to remove and get the object at the top of the Stack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Pop() Method
            <br /> How to remove and get the object at the top of the Stack
        </h2>
        <hr width="600" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Tomato"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Pop() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

Stack Peek() Method - How to get the object at the top of the Stack without removing it

2011-10-16T12:39:00.000-07:00

Stack Peek() Method - How to get the object at the top of the Stack without removing it

StackPeekMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Green");
        colors.Push("SeaGreen");
        colors.Push("MediumSeaGreen");
        colors.Push("DarkGreen");
        colors.Push("LawnGreen");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=SlateBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />Get the object at the top of the Stack";
        Label1.Text += "<br />without removing it using Peek() method.... <br />";
        Label1.Text += "<font color=SlateBlue>";
        Label1.Text += colors.Peek().ToString();
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />After Call Peek() Method, Now Stack Elements... ";
        Label1.Text += "<font color=SlateBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Stack Peek() Method - How to get the object at the top of the Stack without removing it</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Peek() Method
            <br /> How to get the object at the top of the Stack without removing it
        </h2>
        <hr width="625" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="MediumVioletRed"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Peek() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to copy Stack to an existing one-dimensional Array, starting at the specified array index

2011-10-16T12:35:00.000-07:00

How to copy Stack to an existing one-dimensional Array, starting at the specified array index

StackCopyToMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Red");
        colors.Push("DarkRed");
        colors.Push("IndianRed");
        colors.Push("MediumVioletRed");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=SlateBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
        
        string[] redColors = new string[colors.Count];
        colors.CopyTo(redColors,0);

        Label1.Text += "<br /><br />After Call CopyTo(array, index 0) Method, Array Elements...";
        Label1.Text += "<font color=SlateBlue>";
        for(int i=0; i<redColors.Length; i++)
        {
            Label1.Text += "<br />" + redColors[i].ToString();
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to copy Stack to an existing one-dimensional Array, starting at the specified array index</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack CopyTo() Method
            <br /> How to copy the Stack to an existing
            <br /> one-dimensional Array, starting at the specified array index
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="MediumVioletRed"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack CopyTo() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to DataBind RadioButtonList using Stack DataSource

2011-10-16T12:30:00.000-07:00

How to DataBind RadioButtonList using Stack DataSource

DataBindRadioButtonListUsingStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Sienna");
        colors.Push("SeaShell");
        colors.Push("Silver");
        colors.Push("PowderBlue");
        colors.Push("Plum");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=HotPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        RadioButtonList1.DataSource = colors;
        RadioButtonList1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to DataBind RadioButtonList using Stack DataSource</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to DataBind RadioButtonList using Stack DataSource
        </h2>
        <hr width="575" align="left" color="Navy" />
        <asp:RadioButtonList
             ID="RadioButtonList1"
             runat="server"
             RepeatColumns="2"
             ForeColor="DarkOrchid"
             Font-Names="Courier New"
             Font-Size="Large"
             Font-Italic="true"
             BorderColor="Orchid"
             Width="300"
             BorderWidth="1"
             >
        </asp:RadioButtonList>
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Navy"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="DataBind RadioButtonList Using Stack"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to DataBind ListBox using Stack DataSource

2011-10-16T12:26:00.001-07:00

How to DataBind ListBox using Stack DataSource

DataBindListBoxUsingStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Salmon");
        colors.Push("Cyan");
        colors.Push("DarkCyan");
        colors.Push("SandyBrown");
        colors.Push("Orange");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=Olive>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        ListBox1.DataSource = colors;
        ListBox1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to DataBind ListBox using Stack DataSource</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to DataBind ListBox using Stack DataSource
        </h2>
        <hr width="525" align="left" color="Navy" />
        <br />
        <asp:ListBox
             ID="ListBox1"
             runat="server"
             Font-Names="Comic Sans MS"
             Font-Size="Large"
             Font-Italic="true"
             Width="250"
             ForeColor="DarkOrange"
             Font-Bold="true"
             >
        </asp:ListBox>
        <br /><br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Crimson"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="DataBind ListBox Using Stack"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to DataBind DropDownList using Stack DataSource

2011-10-16T12:20:00.000-07:00

How to DataBind DropDownList using Stack DataSource

DataBindDropDownListUsingStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("IndianRed");
        colors.Push("DarkGreen");
        colors.Push("SaddleBrown");
        colors.Push("DarkSalmon");
        colors.Push("DarkViolet");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=DarkViolet>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        DropDownList1.DataSource = colors;
        DropDownList1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to DataBind DropDownList using Stack DataSource</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to DataBind DropDownList using Stack DataSource
        </h2>
        <hr width="550" align="left" color="Navy" />
        <br />
        <asp:DropDownList
             ID="DropDownList1"
             runat="server"
             Font-Size="Large"
             Font-Names="Courier New"
             Width="250"
             ForeColor="HotPink"
             >
        </asp:DropDownList>
        <br /><br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="DataBind DropDownList Using Stack"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to DataBind CheckBoxList using Stack DataSource

2011-10-16T12:15:00.001-07:00

How to DataBind CheckBoxList using Stack DataSource

DataBindCheckBoxListUsingStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("MediumSeaGreen");
        colors.Push("Navy");
        colors.Push("RoyalBlue");
        colors.Push("White");
        colors.Push("GoldenRod");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=PaleVioletRed>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        CheckBoxList1.DataSource = colors;
        CheckBoxList1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to DataBind CheckBoxList using Stack DataSource</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to DataBind CheckBoxList using Stack DataSource
        </h2>
        <hr width="575" align="left" color="Navy" />
        <asp:CheckBoxList
             ID="CheckBoxList1"
             runat="server"
             ForeColor="OliveDrab"
             RepeatColumns="2"
             Font-Names="Courier New"
             Font-Size="Large"
             >
        </asp:CheckBoxList>
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Navy"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="DataBind CheckBoxList Using Stack"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to DataBind BulletedList using Stack DataSource

2011-10-16T12:10:00.000-07:00

How to DataBind BulletedList using Stack DataSource

DataBindBulletedListUsingStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("CornFlowerBlue");
        colors.Push("Cyan");
        colors.Push("DarkGray");
        colors.Push("Snow");
        colors.Push("SeaGreen");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=DeepPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        BulletedList1.DataSource = colors;
        BulletedList1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to DataBind BulletedList using Stack DataSource</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to DataBind BulletedList using Stack DataSource
        </h2>
        <hr width="525" align="left" color="Navy" />
        <asp:BulletedList
             ID="BulletedList1"
             runat="server"
             Font-Names="Comic Sans MS"
             Font-Size="Large"
             Font-Italic="true"
             ForeColor="Green"
             BulletStyle="LowerRoman"
             Font-Bold="true"
             >
        </asp:BulletedList>
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkBlue"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="DataBind BulletedList Using Stack"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to initialize a new instance of the Stack class with default initial capacity

2011-10-15T03:10:00.000-07:00

How to initialize a new instance of the Stack class with default initial capacity

SystemCollectionsStack.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();
        colors.Push("Red");
        colors.Push("Green");
        colors.Push("Blue");
        colors.Push("Yellow");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=Crimson>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to initialize a new instance of the Stack class with default initial capacity</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack
            <br /> How to initialize a new instance of the Stack
            <br /> class that is empty and has the default initial capacity
        </h2>
        <hr width="525" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOliveGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Constructor"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

Stack Count - How to Get the number of elements contained in the Stack

2011-10-15T03:06:00.000-07:00

Stack Count - How to Get the number of elements contained in the Stack

StackCountProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("DarkSeaGreen");
        colors.Push("SpringGreen");
        colors.Push("OliveDrab");
        colors.Push("OrangeRed");
        colors.Push("HotPink");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=OrangeRed>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />Total Stack Elements: " + colors.Count;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Stack Count - How to Get the number of elements contained in the Stack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Count Property
            <br /> How to Get the number of elements contained in the Stack
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="SlateBlue"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Count Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to determine whether an element is in the Stack

2011-10-15T03:02:00.001-07:00

How to determine whether an element is in the Stack

StackContainsMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("BurlyWood");
        colors.Push("SaddleBrown");
        colors.Push("SandyBrown");
        colors.Push("Ivory");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=SlateBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />Is Element 'Ivory' Exists In Stack? " + colors.Contains("Ivory");
        Label1.Text += "<br />Is Element 'Salmon' Exists In Stack? " + colors.Contains("Salmon");
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to determine whether an element is in the Stack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Contains() Method
            <br /> How to determine whether an element is in the Stack
        </h2>
        <hr width="475" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="SteelBlue"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Contains() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to initialize a new instance of empty Stack class with specified initial capacity

2011-10-15T02:57:00.000-07:00

How to initialize a new instance of empty Stack class with specified initial capacity

StackConstructorInt32.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack(100);

        Label1.Text = "Stack initialized with initial capacity 100";

        colors.Push("Ivory");
        colors.Push("IndianRed");
        colors.Push("DarkGreen");
        colors.Push("ForestGreen");

        Label1.Text += "<br /><br />Stack Elements... ";
        Label1.Text += "<font color=DeepPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to initialize a new instance of empty Stack class with specified initial capacity</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Stack Constructor (Int32)
            <br /> How to initialize a new instance of Stack class
            <br /> that is empty and has specified initial capacity or
            <br /> the default initial capacity, whichever is greater
        </h2>
        <hr width="475" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOrchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Constructor (Int32)"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to initialize a new instance of Stack class that contains elements copied from specified collection

2011-10-15T00:28:00.001-07:00

How to initialize a new instance of Stack class that contains elements copied from specified collection

StackConstructorICollection.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        List<string> redColors = new List<string>() {"Red","IndianRed","DarkRed" };
        Stack colors = new Stack(redColors);

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=Crimson>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
        
        colors.Push("Yellow");

        Label1.Text += "<br /><br />After Push 'Yellow', Now Stack Elements... ";
        Label1.Text += "<font color=Crimson>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to initialize a new instance of Stack class that contains elements copied from specified collection</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Stack Constructor (ICollection)
            <br /> How to initialize a new instance of the Stack class
            <br /> that contains elements copied from the specified collection
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Constructor (ICollection)"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to remove all objects from the Stack

2011-10-15T00:22:00.000-07:00

How to remove all objects from the Stack

StackClearMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        Stack colors = new Stack();

        colors.Push("Magenta");
        colors.Push("Maroon");
        colors.Push("MediumSeaGreen");
        colors.Push("Lavender");

        Label1.Text = "Stack Elements... ";
        Label1.Text += "<font color=Tomato>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        //this line remove all elements from Stack.
        colors.Clear();

        Label1.Text += "<br /><br />After Call Clear() Method, Stack Elements... ";
        Label1.Text += "<font color=Tomato>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to remove all objects from the Stack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.Stack Clear() Method
            <br /> How to remove all objects from the Stack
        </h2>
        <hr width="375" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="SteelBlue"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test Stack Clear() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList Item Property - How to get or set the element at the specified index

2011-10-15T00:16:00.000-07:00

ArrayList Item Property - How to get or set the element at the specified index

ArrayListItemProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Olive", "Indigo", "Violet", "Green", "Yellow" };

        Label1.Text = "<font color=Crimson>'colors' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />ArrayList Index 0 Element: " + colors[0];
        Label1.Text += "<br />ArrayList Index 2 Element: " + colors[2];
        Label1.Text += "<br />ArrayList Index 4 Element: " + colors[4];

        colors[2] = "Red";

        Label1.Text += "<br /><br /><font color=Crimson>After Modify ArrayList Index 2 Element... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList Item Property - How to get or set the element at the specified index</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Item Property
            <br /> How to get or set the element at the specified index
        </h2>
        <hr width="525" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOliveGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Item Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to create a read-only copy of the ArrayList

2011-10-15T00:12:00.000-07:00

How to create a read-only copy of the ArrayList

ArrayListIsReadOnlyProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Salmon", "SandyBrown", "Gray" };

        Label1.Text = "<font color=DodgerBlue>'colors' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        ArrayList readOnlyColors = ArrayList.ReadOnly(colors);

        Label1.Text += "<br /><br />Is 'colors' ArrayList ReadOnly? " + colors.IsReadOnly.ToString();
        Label1.Text += "<br />Is 'readOnlyColors' ArrayList ReadOnly? " + readOnlyColors.IsReadOnly.ToString();

        colors.Add("White");

        //Uncomment this line to get error message.
        //readOnlyColors.Add("White");

        Label1.Text += "<br /><br /><font color=DodgerBlue>After Adding 'White', Now 'colors' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to create a read-only copy of the ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList IsReadOnly Property
            <br /> How to create a read-only copy of the ArrayList
        </h2>
        <hr width="525" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="HotPink"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList IsReadOnly Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList IsFixedSize Property - How to get whether the ArrayList has a fixed size

2011-10-15T00:07:00.000-07:00

ArrayList IsFixedSize Property - How to get whether the ArrayList has a fixed size

ArrayListIsFixedSizeProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Blue", "SkyBlue", "LightBlue" };

        Label1.Text = "<font color=DodgerBlue>'colors' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        ArrayList fixedSizeColors = ArrayList.FixedSize(colors);

        Label1.Text += "<br /><br />Is 'colors' ArrayList FixedSize? " + colors.IsFixedSize.ToString();
        Label1.Text += "<br />Is 'fixedSizeColors' ArrayList FixedSize? " + fixedSizeColors.IsFixedSize.ToString();

        colors.Add("Green");
        
        //Uncomment this line to get error message, because fixed size ArrayList does not support add/remove
        //fixedSizeColors.Add("Green");
        
        Label1.Text += "<br /><br /><font color=DodgerBlue>After Adding 'Green', Now 'colors' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        fixedSizeColors[1] = "Crimson";
        Label1.Text += "<br /><br />After modify 'index 1', Now 'fixedSizeColors' ArrayList Elements... <font color=DodgerBlue>";
        foreach (string color in fixedSizeColors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList IsFixedSize Property - How to get whether the ArrayList has a fixed size</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList IsFixedSize Property
            <br /> How to get a value indicating whether
            <br /> the ArrayList has a fixed size
        </h2>
        <hr width="325" align="left" color="Navy" />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="HotPink"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList IsFixedSize Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList Count - How to get number of elements actually contained in the ArrayList

2011-10-15T00:02:00.000-07:00

ArrayList Count - How to get number of elements actually contained in the ArrayList

ArrayListCountProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "IndianRed","Red","DarkRed" };

        Label1.Text = "<font color=DodgerBlue>ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br />ArrayList Elements Count: " + colors.Count;
        
        colors.Add("DodgerBlue");

        Label1.Text += "<br /><br /><font color=DodgerBlue>After Adding 'DodgerBlue' ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br />ArrayList Elements Count: " + colors.Count;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList Count - How to get number of elements actually contained in the ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Count Property
            <br /> How to get the number of elements
            <br /> actually contained in the ArrayList
        </h2>
        <hr width="375" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="HotPink"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Count Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList Capacity - How to get or set number of elements that ArrayList can contain

2011-10-14T23:56:00.000-07:00

ArrayList Capacity - How to get or set number of elements that ArrayList can contain

ArrayListCapacityProperty.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Snow","Indigo","FloralWhite","Gold","Red","Green" };

        Label1.Text = "ArrayList Capacity: " + colors.Capacity;

        Label1.Text += "<br /><br /><font color=DodgerBlue>ArrayList Elements... ";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Capacity = 25;

        Label1.Text += "<br /><br />Now ArrayList Capacity: " + colors.Capacity;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList Capacity - How to get or set number of elements that ArrayList can contain</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Capacity Property
            <br /> How to get or set the number
            <br /> of elements that the ArrayList can contain
        </h2>
        <hr width="450" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DeepPink"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Capacity Property"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to copy the elements of the ArrayList to a new array of the specified element type

2011-10-12T04:11:00.000-07:00

How to copy the elements of the ArrayList to a new array of the specified element type

ArrayListToArrayMethodWithType.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList favoriteColors = new ArrayList() { "White","FloralWhite","FireBrick","GoldenRod","LightCyan" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DodgerBlue>";
        foreach (string color in favoriteColors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        string[] favoriteColorArray = (string[])favoriteColors.ToArray(typeof(string));

        Label1.Text += "<br /><br />After Call ToArray(Type string) Method";
        Label1.Text += "<br />Array Elements....";
        Label1.Text += "<font color=MediumSlateBlue>";
        for (int i = 0; i < favoriteColorArray.Length; i++)
        {
            Label1.Text += "<br />" + favoriteColorArray[i];
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to copy the elements of the ArrayList to a new array of the specified element type</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList ToArray(Type) Method
            <br /> How to copy the elements of the ArrayList
            <br /> to a new array of the specified element type
        </h2>
        <hr width="450" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DeepPink"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList ToArray(Type) Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList ToArray() - How to copy the elements of the ArrayList to a new Object array

2011-10-12T04:07:00.001-07:00

ArrayList ToArray() - How to copy the elements of the ArrayList to a new Object array

ArrayListToArrayMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "CornFlowerBlue", "DarkGoldenRod", "Gold", "DodgerBlue", "FloralWhite" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DarkOrange>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        var colorArray = colors.ToArray();

        Label1.Text += "<br /><br />After Call ToArray() Method";
        Label1.Text += "<br />Array Elements....";
        Label1.Text += "<font color=DarkSalmon>";
        for (int i = 0; i < colorArray.Length; i++)
        {
            Label1.Text += "<br />" + colorArray[i].ToString();
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList ToArray() - How to copy the elements of the ArrayList to a new Object array</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList ToArray() Method
            <br /> How to copy the elements of the ArrayList to a new Object array
        </h2>
        <hr width="650" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="SeaGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList ToArray() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to sort the elements in the entire ArrayList

2011-10-12T04:02:00.000-07:00

How to sort the elements in the entire ArrayList

ArrayListSortMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "LavenderBlush", "GreenYellow", "OliveDrab", "Coral", "Indigo","Cyan" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DeepPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Sort();

        Label1.Text += "<br /><br />After Call Sort() Method";
        Label1.Text += "<br />Now ArrayList Elements....";
        Label1.Text += "<font color=HotPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to sort the elements in the entire ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Sort() Method
            <br /> How to sort the elements in the entire ArrayList
        </h2>
        <hr width="450" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="SeaGreen"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Sort() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList SetRange() - How to copy the elements of a collection over a range of elements in the ArrayList

2011-10-12T03:56:00.000-07:00

ArrayList SetRange() - How to copy the elements of a collection over a range of elements in the ArrayList

ArrayListSetRangeMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Red", "IndianRed", "PaleVioletRed", "DarkRed", "Lavender","Snow" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=SeaGreen>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        List<string> pinkColors = new List<string>() {"Pink","DeepPnk","HotPink" };
        colors.SetRange(2,pinkColors);

        Label1.Text += "<br /><br />List Elements(ICollection)....";
        Label1.Text += "<font color=SlateBlue>";
        foreach (string color in pinkColors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />After Call SetRange(index 2, ICollection) Method";
        Label1.Text += "<br />Now ArrayList Elements....";
        Label1.Text += "<font color=DeepPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList SetRange() - How to copy the elements of a collection over a range of elements in the ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList SetRange() Method
            <br /> How to copy the elements of a collection
            <br /> over a range of elements in the ArrayList
        </h2>
        <hr width="425" align="left" color="Navy" />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkSalmon"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList SetRange() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList - How to reverse the order of the elements in the specified range

2011-10-12T03:47:00.000-07:00

ArrayList - How to reverse the order of the elements in the specified range

ArrayListReverseMethodWithRange.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "DimGray", "Gold", "Green", "Ivory", "LightSalmon" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=SeaGreen>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Reverse(1,3);

        Label1.Text += "<br /><br />After Call Reverse(index 1, count 3) Method";
        Label1.Text += "<br />Now ArrayList Elements....";

        Label1.Text += "<font color=DeepPink>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList - How to reverse the order of the elements in the specified range</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Reverse(Int32, Int32) Method
            <br /> How to reverse the order of the elements in the specified range
        </h2>
        <hr width="625" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkSalmon"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Reverse(Int32, Int32) Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to reverse order of the elements in the entire ArrayList

2011-10-12T03:01:00.000-07:00

How to reverse order of the elements in the entire ArrayList

ArrayListReverseMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "DarkTurquoise", "DeepSkyBlue", "DarkGreen", "Fuchsia", "GainsBoro" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DarkOrchid>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Reverse();

        Label1.Text += "<br /><br />After Call Reverse() Method";
        Label1.Text += "<br />Now ArrayList Elements....";

        Label1.Text += "<font color=Crimson>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to reverse order of the elements in the entire ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Reverse() Method
            <br /> How to reverse the order of the elements in the entire ArrayList
        </h2>
        <hr width="610" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkSlateBlue"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Reverse() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to remove a range of elements from ArrayList

2011-10-12T02:55:00.000-07:00

How to remove a range of elements from ArrayList

ArrayListRemoveRangeMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Pink", "Peru", "Plum", "Snow", "Blue","White" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DeepBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.RemoveRange(2,3);

        Label1.Text += "<br /><br />After Call RemoveRange(index 2, count 3) Method";
        Label1.Text += "<br />Now ArrayList Elements....";
        Label1.Text += "<font color=DarkSlateGray>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to remove a range of elements from ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList RemoveRange() Method
            <br /> How to remove a range of elements from the ArrayList
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Orchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList RemoveRange() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to remove first occurrence of a specific object from ArrayList

2011-10-12T02:50:00.000-07:00

How to remove first occurrence of a specific object from ArrayList

ArrayListRemoveMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "Yellow", "Violet", "Yellow", "DarkGray", "DeepPink" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=OliveDrab>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Remove("Yellow");

        Label1.Text += "<br /><br />After Call Remove(object Yellow) Method";
        Label1.Text += "<font color=Red>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to remove first occurrence of a specific object from ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Remove() Method
            <br /> How to remove the first occurrence of a specific object from the ArrayList
        </h2>
        <hr width="675" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Orchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Remove() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to remove the element at the specified index of the ArrayList

2011-10-12T02:45:00.000-07:00

How to remove the element at the specified index of the ArrayList

ArrayListRemoveAtMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "WhiteSmoke", "Wheat", "SteelBlue", "SlateGray", "Thistle" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=SandyBrown>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.RemoveAt(3);

        Label1.Text += "<br /><br />After Call RemoveAt(index 3) Method";
        Label1.Text += "<br />Now ArrayList Elements....";
        Label1.Text += "<font color=Tomato>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to remove the element at the specified index of the ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList RemoveAt() Method
            <br /> How to remove the element at the specified index of the ArrayList
        </h2>
        <hr width="665" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Orchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList RemoveAt() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

ArrayList LastIndexOf() - How to search specified Object and get index of last occurrence

2011-10-12T02:39:00.000-07:00

ArrayList LastIndexOf() - How to search specified Object and get index of last occurrence

ArrayListLastIndexOfMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() {"BlanchedAlmond","Brown","Cornsilk","Brown","CadetBlue"};

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DarkGreen>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />LastIndexOf(object) Method";
        Label1.Text += "<font color=Red>";
        Label1.Text += "<br />Last Index Of 'Brown': " +colors.LastIndexOf("Brown").ToString();
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>ArrayList LastIndexOf() - How to search specified Object and get index of last occurrence</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList LastIndexOf() Method
            <br /> How to search specified Object and get index of last occurrence
        </h2>
        <hr width="625" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Orchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList LastIndexOf() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to insert the elements of a collection into the ArrayList at the specified index

2011-10-11T09:55:00.001-07:00

How to insert the elements of a collection into the ArrayList at the specified index

ArrayListInsertRangeMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() {"Green","SeaGreen","SpringGreen","LawnGreen"};

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=Green>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        List<string> redColors = new List<string>() {"Red","DarkRed","IndianRed" };
        colors.InsertRange(2,redColors);

        Label1.Text += "<br /><br />After call InsertRange(index 2, ICollection) Method";
        Label1.Text+= "<br /><u>Now ArrayList Elements</u>...";
        Label1.Text += "<font color=Red>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to insert the elements of a collection into the ArrayList at the specified index</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList InsertRange() Method
            <br /> How to insert the elements of a collection
            <br /> into the ArrayList at the specified index
        </h2>
        <hr width="475" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Orchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList InsertRange() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to insert an element into the ArrayList at the specified index

2011-10-11T09:50:00.000-07:00

How to insert an element into the ArrayList at the specified index

ArrayListInsertMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() {"BurlyWood","Coral","Indigo","CadetBlue"};

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=Crimson>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        colors.Insert(1,"Orchid");

        Label1.Text += "<br /><br />After call Insert(index 1, object Orchid) Method";
        Label1.Text+= "<br /><u>Now ArrayList Elements</u>...";
        Label1.Text += "<font color=OrangeRed>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to insert an element into the ArrayList at the specified index</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList Insert() Method
            <br /> How to insert an element into the ArrayList at the specified index
        </h2>
        <hr width="650" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="OliveDrab"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList Insert() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to use System.Collections.ArrayList IndexOf(Object, Int32, Int32) Method

2011-10-11T09:45:00.000-07:00

How to use System.Collections.ArrayList IndexOf(Object, Int32, Int32) Method

ArrayListIndexOfMethodWithStartIndexAndCount.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() { "ForestGreen", "Orange", "SkyBlue", "Navy", "Orange", "Olive" };

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=SkyBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />IndexOf(object Orange, startIndex 2, count 4)";
        Label1.Text += "<font color=Crimson>";
        Label1.Text += "<br />Index of 'Orange': " + colors.IndexOf("Orange", 2, 4);
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use System.Collections.ArrayList IndexOf(Object, Int32, Int32) Method</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList IndexOf(Object, Int32, Int32) Method
            <br /> How to search specified Object and get zero-based index of first
            <br /> occurrence within the range of elements in ArrayList that starts
            <br /> at specified index and contains specified number of elements
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOrchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList IndexOf(Object, Int32, Int32) Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to search specified Object, get zero-based index of first occurrence within the range of elements in ArrayList

2011-10-11T09:40:00.001-07:00

How to search specified Object, get zero-based index of first occurrence within the range of elements in ArrayList

ArrayListIndexOfMethodWithStartIndex.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() {"Green","Blue","Red","Peru","Blue","Salmon"};

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DarkOrange>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<br /><br />IndexOf(object Blue, startIndex 2)";
        Label1.Text += "<font color=DarkGreen>";
        Label1.Text += "<br />Index of 'Blue': " + colors.IndexOf("Blue", 2);
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to search specified Object, get zero-based index of first occurrence within the range of elements in ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList IndexOf(Object, Int32) Method
            <br /> How to search specified Object, get zero-based index
            <br /> of first occurrence within the range of elements in ArrayList
        </h2>
        <hr width="575" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="DarkOrchid"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList IndexOf(Object, Int32) Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

Related asp.net example

How to search specified Object and get zero-based index of the first occurrence within the entire ArrayList

2011-10-11T09:33:00.000-07:00

How to search specified Object and get zero-based index of the first occurrence within the entire ArrayList

ArrayListIndexOfMethod.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        ArrayList colors = new ArrayList() {"Olive","HotPink","White","Peru","Pink","Yellow"};

        Label1.Text = "ArrayList Elements....";
        Label1.Text += "<font color=DodgerBlue>";
        foreach (string color in colors)
        {
            Label1.Text += "<br />" + color;
        }
        Label1.Text += "</font>";

        Label1.Text += "<font color=HotPink>";
        Label1.Text += "<br /><br />Index of 'White': " + colors.IndexOf("White");
        Label1.Text += "</font>";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to search specified Object and get zero-based index of the first occurrence within the entire ArrayList</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            System.Collections.ArrayList IndexOf() Method
            <br /> How to search specified Object and get zero-based
            <br /> index of the first occurrence within the entire ArrayList
        </h2>
        <hr width="550" align="left" color="Navy" />
        <br />
        <asp:Label
             ID="Label1"
             runat="server"
             ForeColor="Green"
             Font-Size="Large"
             Font-Names="Courier New"
             Font-Italic="true"
             Font-Bold="true"
             >
        </asp:Label>
        <br /><br />
        <asp:Button 
            ID="Button1"
            runat="server"
            OnClick="Button1_Click"
            Text="Test ArrayList IndexOf() Method"
            Height="45"
            Font-Bold="true"
            ForeColor="DodgerBlue"
            />
    </div>
    </form>
</body>
</html>

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