Populate ListBox from two dimensional array in asp.net c#

Populate a ListBox from two dimensional array
TwoDimensionArrayListBox.aspx

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

<!DOCTYPE html>

<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        string[,] favoriteColors = { { "Cornsilk", "#FFF8DC" }, { "Crimson", "#DC143C" }, { "Cyan", "#00FFFF" }, { "DarkBlue", "#00008B" }, { "DarkCyan", "#008B8B" } };
        Label1.Text = "Two dimensional String array created successfully!<br />and populates the ListBox:<br /><br />";
        int rows = favoriteColors.GetUpperBound(0);
        int columns = favoriteColors.GetUpperBound(1);
        ListBox1.Items.Clear();
        
        for (int currentRow = 0; currentRow <= rows; currentRow++)
        {
            ListItem li = new ListItem();
            for (int currentColumn = 0; currentColumn <= columns; currentColumn++)
            {
                if (currentColumn == 0)
                {
                    li.Text = favoriteColors[currentRow, currentColumn];
                }
                else
                {
                    li.Value = favoriteColors[currentRow, currentColumn];
                }
            }
            ListBox1.Items.Add(li);
        }
    }

    protected void ListBox1_SelectedIndexChanged(object sender, System.EventArgs e) {
        Label2.Text = "You selected:";
        Label2.Text += "<br />Item Text: "+ ListBox1.SelectedItem.Text;
        Label2.Text += "<br />Item Value: " + ListBox1.SelectedItem.Value;
    
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to populate ListBox from two dimension string array in asp.net</title>
</head> 
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Green">asp.net array example:<br />Two Dimension String Array And ListBox</h2>
        <asp:Label 
             ID="Label1" 
             runat="server" 
             Font-Size="Large"
             ForeColor="SlateBlue"
             Font-Bold="true"
             Font-Italic="true"
             >
        </asp:Label>
        <asp:Label 
             ID="Label2" 
             runat="server" 
             Font-Size="Large"
             ForeColor="SeaGreen"
             Font-Bold="true"
             Font-Italic="true"
             >
        </asp:Label>
        <br /><br />
        <asp:ListBox 
             ID="ListBox1" 
             runat="server" 
             BackColor="DodgerBlue" 
             ForeColor="FloralWhite"
             OnSelectedIndexChanged="ListBox1_SelectedIndexChanged"
             AutoPostBack="true"
             >
        </asp:ListBox>
        <br /><br />
        <asp:Button 
             ID="Button1" 
             runat="server" 
             OnClick="Button1_Click"
             Font-Bold="true"
             Text="Populate ListBox With Two Dimensional Array"
             ForeColor="Crimson"
             />   
    </div>
    </form>
</body>
</html>
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