Gridview with checkbox with check all option

Pankaj Pandey
May 23, 2013
4.2k
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Design Page (.aspx file)

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridiew.aspx.cs" Inherits="gridiew" %>
<!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 id="Head1" runat="server">
  <title>Untitled Page</title>
  <style type="text/css">
  .style1
  {
  width: 100%;
  }
  .style2
  {
  height: 15px;
  }
  .style3
  {
  }
  .style4
  {
  width: 134px;
  }
  .style5
  {
  height: 19px;
  }
  </style>
</head>
<body>
  <form id="form1" runat="server">
  <div style="height: 268px">
  <table cellpadding="0" cellspacing="0" class="style1">
  <tr>
  <td class="style2" colspan="2">
  gridview example
  </td>
  </tr>
  <tr>
  <td class="style4">
  <asp:CheckBox ID="CheckBox1" runat="server" Text="Select all" AutoPostBack="True"
  OnCheckedChanged="CheckBox1_CheckedChanged" />
  </td>
  <td>
  <asp:Button ID="Button1" runat="server" Text="Delete" Width="87px" OnClick="Button1_Click" />
  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Height="50%"
  Width="101%" OnSelectedIndexChanged="CheckBox1_CheckedChanged">
  <Columns>
  <asp:TemplateField HeaderText="Empid">
  <EditItemTemplate>
  <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Customer_Name") %>'></asp:TextBox>
  </EditItemTemplate>
  <FooterTemplate>
  <table cellpadding="0" cellspacing="0" class="style1">
  <tr>
  <td align="left">
  <asp:CheckBox ID="CheckBox1" runat="server" Text="Select all" />
               
  <asp:Button ID="Button1" runat="server" Text="Delete" Width="100px" />
  </td>
  </tr>
  </table>
  </FooterTemplate>
  <HeaderTemplate>
  <table cellpadding="0" cellspacing="0" class="style1">
  <tr>
  <td class="style5">
  <asp:CheckBox ID="CheckBox3" runat="server" AutoPostBack="True" OnCheckedChanged="CheckBox3_CheckedChanged" />
  </td>
  </tr>
  </table>
  </HeaderTemplate>
  <ItemTemplate>
                                <asp:CheckBox ID="CheckBox2" runat="server" OnCheckedChanged="CheckBox2_CheckedChanged"
  Text='<%# Eval("Customer_Name") %>' />
  </ItemTemplate>
  </asp:TemplateField>
  <asp:BoundField DataField="Customer_Name" HeaderText="EmpName" />
  <asp:BoundField DataField="Customer_Name" HeaderText="Salary" />
          <asp:TemplateField></asp:TemplateField>
  </Columns>
  </asp:GridView>
  </td>
  </tr>
  <tr>
  <td class="style3" colspan="2">
   
  </td>
  </tr>
  </table>
  </div>
  </form>
</body>
</html>

Code Behind(.cs file)

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.Web.Configuration;
using System.Data.SqlClient;

public partial class gridiew : System.Web.UI.Page
{
  SqlConnection cn = new SqlConnection(@"Data Source=.\SQL;Initial Catalog=pankaj;Integrated Security=true");
  string chk;
  protected void Page_Load(object sender, EventArgs e)
  {
  if (!Page.IsPostBack)
  {
  SqlDataAdapter da = new SqlDataAdapter("select*from Customer_Orders", cn);
  DataTable dt = new DataTable();
  da.Fill(dt);
  GridView1.DataSource = dt;
  GridView1.DataBind();
  }
  }
  protected void Button1_Click(object sender, EventArgs e)
  {
  int j = GridView1.Rows.Count;
  for (int i = 0; i < j; i++)
  {
  CheckBox chk1;
  chk1 = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox2");
        if (chk1.Checked == true)
  {
  string s = chk1.Text;
  int i1 = int.Parse(s);
  SqlConnection con = new SqlConnection(@"Data Source=dfin25;Initial Catalog=pankaj pandey;Integrated Security=true");
  SqlCommand cmd = new SqlCommand("delete from emp where EmpId=" + i1 + "", con);
  con.Open();
  cmd.ExecuteNonQuery();
  con.Close();
  }
  }
  }
  protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
  {
  bool flg = true;
  for (int i = 0; i < GridView1.Rows.Count; i++)
  {
  CheckBox chk;
  chk = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox2");
  if (chk.Checked == false)
  {
  flg = false;
  break;
  }
  }
  CheckBox1.Checked = flg;
  }
  protected void CheckBox3_CheckedChanged(object sender, EventArgs e)
  {
  CheckBox chk1;
  chk1 = (CheckBox)GridView1.HeaderRow.FindControl("CheckBox3");
  for (int i = 0; i < GridView1.Rows.Count; i++)
  {
  CheckBox chk;
  chk = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox2");
  chk.Checked = chk1.Checked;
  }
  }
}