Validate an URL using RegularExpressionValidator in asp.net c#

RegularExpressionValidator to validate URL
URLValidation.aspx

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

<!DOCTYPE html>

<script runat="server">
    protected void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text = "Your Home Page:<br/ >" + TextBox1.Text.ToString();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>asp.net RegularExpressionValidator example: how to validate URL</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Navy">RegularExpressionValidator: Internet URL</h2>
        <asp:Label 
             ID="Label1" 
             runat="server"
             Font-Bold="true"
             Font-Italic="true"
             Font-Size="Large"
             ForeColor="HotPink"
             >
        </asp:Label>
        <br /><br />
        <asp:Label 
             ID="Label2" 
             runat="server" 
             Text="Home Page"
             Font-Bold="true"
             ForeColor="Teal"
             >
        </asp:Label>
        <asp:TextBox 
             ID="TextBox1" 
             runat="server"
             BackColor="Teal"
             ForeColor="Snow"
             Width="250"
             >
        </asp:TextBox>
        <asp:RequiredFieldValidator 
             ID="RequiredFieldValidator1"
             runat="server"
             ControlToValidate="TextBox1"
             Text="*"
             >
        </asp:RequiredFieldValidator>
        <asp:RegularExpressionValidator 
            ID="RegularExpressionValidator1"
            runat="server" 
            ValidationExpression="http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?"
            ControlToValidate="TextBox1"
            ErrorMessage="Input valid Internet URL!"
            ></asp:RegularExpressionValidator>
        <br /><br />
        <asp:Button 
             ID="Button1" 
             runat="server" 
             Text="Submit URL"
             Font-Bold="true"
             ForeColor="Teal" 
             OnClick="Button1_Click"
             />
    </div>
    </form>
</body>
</html>










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