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Friday, February 28, 2014
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Default selection RadiobuttonList Example in ASP.NET

7:18 AMFriday, February 28, 2014
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Default selection</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True" 
            onselectedindexchanged="RadioButtonList1_SelectedIndexChanged">
            <asp:ListItem>Literal Control</asp:ListItem>
            <asp:ListItem>Label Control </asp:ListItem>
            <asp:ListItem>Localize control</asp:ListItem>
            <asp:ListItem>Multiview Control</asp:ListItem>
        </asp:RadioButtonList><br />
        <asp:Label ID="Label1" runat="server"></asp:Label>

    </div>
    </form>
</body>
</html>

Code behind code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Default5 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (RadioButtonList1.SelectedIndex < 0)
        {
            RadioButtonList1.SelectedIndex = 0;
            Label1.Text += "Default selection in radio button list.";
        }
        else
        {
            Label1.Text = "Your item selected are : " + RadioButtonList1.SelectedItem.Text;
        }  
    }
}

Code generate the following output

Default selection RadiobuttonList Example in ASP.NET
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