in gridview using checkbox how to select all rows and deselect all rows by clicking the checkbox in headerpart in asp.net with c#language with example and code

Hi Ranjan,


Try this...


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication5._Default" %>





   
   


   

   

   
   
            
   
   
   
   
   
   
   
   
   
 
   

   

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
namespace WebApplication5
{
    public partial class _Default : System.Web.UI.Page
    {
        string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        SqlCommand com;
        SqlDataAdapter sqlda;
        DataSet ds;
        string str;

        protected void Page_Load(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(connStr);
            con.Open();
            str = "select * from student";
            com = new SqlCommand(str, con);
            sqlda = new SqlDataAdapter(com);
            ds = new DataSet();
            sqlda.Fill(ds, "student");
            GridView1.DataMember = "student";
            GridView1.DataSource = ds;
            GridView1.DataBind();
            con.Close();
        }
    }
}



Thanks
If this post helps you mark it as answer

Check this -

http://www.c-sharpcorner.com/uploadfile/krishnasarala/checkuncheck-all-checkboxes-in-Asp-Net-gridview/

http://www.c-sharpcorner.com/UploadFile/sushmita_kumari/Checkbox201112006232423PM/Checkbox2.aspx

In ASp.Net


Put Check Box In header Template and Use It

1. Add Item Template Column In Gridview.

2.Add Check Box That Column in Header Template




3. you will get it you can put your code in that check box event