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Sunday, 4 January 2015

Single RadioButton Selection in GridView In Asp.Net Using C#.Net

1/04/2015 - By Pranav Singh 2



This article will show you how you can use radiobutton control in gridview and allow user to select only one radiobutton in asp.net using c#.net.


So for this article first we will create a new asp.net application and add the below code into the page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!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>Single RadioButton Selection in GridView In Asp.Net Using C#.Net </title>
    <script src="jquery-1.4.1.min.js" type="text/javascript"></script>
   
</head>
<body>
    <form id="form1" runat="server">
    <table width="100%" cellpadding="4" cellspacing="4">
        <tr>
            <td align="center">
              <h3>Radiobutton selection in GridView</h3>
            </td>
        </tr>
        <tr>
            <td align="left">
                <asp:GridView ID="GridView1" runat="server" Width="100%" AutoGenerateColumns="False">
                    <Columns>
                        <asp:TemplateField>                         
                            <ItemTemplate>
                                <asp:RadioButton ID="RadioButton1" runat="server" name="userradio"/>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="Name" HeaderText="Name" />
                        <asp:BoundField DataField="Address" HeaderText="Address" />
                        <asp:BoundField DataField="UserType" HeaderText="UserType" />
                    </Columns>
                </asp:GridView>
            </td>
        </tr>
    </table>
    </form>
</body>
</html>

In above code I have used asp.net radio button.  Add the code to bind the detail.
using System;
using System.Data.SqlClient;
using System.Data;
namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindGridView();
            }
        }
        private void BindGridView()
        {
            SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["con"].ToString());
            try
            {
                DataTable objdt = new DataTable();
                string query = "select * from UserDetail;";
                SqlDataAdapter da = new SqlDataAdapter(query, con);
                con.Open();
                da.Fill(objdt);
                con.Close();
                if (objdt.Rows.Count > 0)
                {
                    GridView1.DataSource = objdt;
                    GridView1.DataBind();
                }
            }
            catch
            {
                con.Close();
            }
        }      
    }
}

Now run the code to check the check the output.


In above we can see that we are able to select multiple radio button. Why this is happening. This is because when we run the code at that time button name are generating dynamically and as we know that for grouping the radio button we need same name for the radio buttons.

Now check the below code.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!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>Single RadioButton Selection in GridView In Asp.Net Using C#.Net </title>
    <script src="jquery-1.4.1.min.js" type="text/javascript"></script>
   
</head>
<body>
    <form id="form1" runat="server">
    <table width="100%" cellpadding="4" cellspacing="4">
        <tr>
            <td align="center">
              <h3>Radiobutton selection in GridView</h3>
            </td>
        </tr>
        <tr>
            <td align="left">
                <asp:GridView ID="GridView1" runat="server" Width="100%" AutoGenerateColumns="False">
                    <Columns>
                        <asp:TemplateField>                         
                            <ItemTemplate>
                                <input id="Radio1" type="radio" name="userrbt"/>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="Name" HeaderText="Name" />
                        <asp:BoundField DataField="Address" HeaderText="Address" />
                        <asp:BoundField DataField="UserType" HeaderText="UserType" />
                    </Columns>
                </asp:GridView>
            </td>
        </tr>
    </table>
    </form>
</body>
</html>

In above I have used html radio button and assigned the name to the radio button. Now we run the application and check the output.
 

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2 comments:

  1. Wow sir you just helped me alot! I was searching for somtheing like this and i always found old Solutions, which are not working anymore!

    Thank you very very much!

    ReplyDelete
  2. Is it possible to check These "Radiobuttons" now? Would like to check which one is checked and then select the row from the Gridview... is that possible?

    ReplyDelete

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