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Show all records in gridview when we check the CheckBox

Posted By:satyapriyanayak       Posted Date: July 07, 2014    Points: 40    Category: ASP.NET Controls    URL: http://www.dotnetspark.com  

In this Code Snippets we will know how to show all records in gridview when we check the CheckBox.
 

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

<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:GridView ID="GridView1" runat="server">
    </asp:GridView>
     <asp:CheckBox ID="chk1" runat="server"  AutoPostBack="True"
        Text="Show All" oncheckedchanged="chk1_CheckedChanged" />
    </div>
    </form>
</body>
</html>


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 Show_all_select_checkbox
{
    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)
        {
            bindgrid();
        }
        private void bindgrid()
        {
            SqlConnection con = new SqlConnection(connStr);
            con.Open();
            str = "select EmpName from employee";
            com = new SqlCommand(str, con);
            sqlda = new SqlDataAdapter(com);
            ds = new DataSet();
            sqlda.Fill(ds, "employee");
            GridView1.DataMember = "employee";
            GridView1.DataSource = ds;
            GridView1.DataBind();
            con.Close();
        }

       
        protected void chk1_CheckedChanged(object sender, EventArgs e)
        {
            if (chk1.Checked == true)
            {
                SqlConnection con = new SqlConnection(connStr);
                con.Open();
                str = "select * from employee";
                com = new SqlCommand(str, con);
                sqlda = new SqlDataAdapter(com);
                ds = new DataSet();
                sqlda.Fill(ds, "employee");
                GridView1.DataMember = "employee";
                GridView1.DataSource = ds;
                GridView1.DataBind();
                con.Close();
            }
            else
            {
                bindgrid();
            }
           
        }

        
    }
}


     

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