Select all checkboxes check or uncheck inside the gridview by outside the checkbox ~ Code Kulshresth

Select all checkboxes check or uncheck inside the gridview by outside the checkbox

......................source code start...............................
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="login.aspx.cs" Inherits="login" %>

<!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></title>

<script type="text/javascript">
function selectAll(invoker) {
var inputElements = document.getElementsByTagName('input');
for (var i = 0; i < inputElements.length; i++) {
var myElement = inputElements[i];
if (myElement.type === "checkbox") {
myElement.checked = invoker.checked;
}
}
}
function selectAll_() {
var inputElements = document.getElementsByTagName('input');
for (var i = 0; i < inputElements.length; i++) {
var myElement = inputElements[i];
if (myElement.type === "checkbox") {
myElement.checked = true;
}
}
}
function deselectAll_() {
var inputElements = document.getElementsByTagName('input');
for (var i = 0; i < inputElements.length; i++) {
var myElement = inputElements[i];
if (myElement.type === "checkbox") {
myElement.checked = false;
}
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
<Columns>

<asp:TemplateField>
<HeaderTemplate>
<asp:CheckBox ID="chkSelectH" runat="server" OnClick="selectAll(this)"/>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center"/>
</asp:TemplateField>

<asp:BoundField HeaderText="Id" DataField="id"/>
<asp:BoundField HeaderText="Name" DataField="name" />
<asp:BoundField HeaderText="Salary" DataField="salary" />

</Columns>
</asp:GridView>
<asp:Button ID="btnSelectAllB" runat="server" Text="Select All"
OnClientClick="selectAll_();return false;" UseSubmitBehavior="False"
onclick="btnSelectAllB_Click" />
<asp:Button ID="btnDeselectAllB" runat="server" Text="Deselect All" OnClientClick="deselectAll_();return false;" UseSubmitBehavior="False" />
<asp:Button ID="btnDeleteB" runat="server" Text="Delete" OnClientClick="javascript:return confirm('Are You Sure to Continue to delete?')" onclick="btnDelete_Click" />

<asp:Label ID="lblmsg" runat="server" Text="Label"></asp:Label>

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

......................source code end...............................

..........................code behind start...................................

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Configuration;

using System.Data.SqlClient;

using System.IO;

public partial class login : System.Web.UI.Page

{

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ToString());

SqlDataAdapter da;

DataSet ds = new DataSet();

SqlCommand cmd;

protected void Page_Load(object sender, EventArgs e)

{

binddata();

}

protected void binddata()

{

con.Open();

string str1 = "select * from emp";

da = new SqlDataAdapter(str1, con);

da.Fill(ds);

GridView1.DataSource = ds;

GridView1.DataBind();

con.Close();

}

protected void btnDelete_Click(object sender, EventArgs e)

{

lblmsg.Text = "Selected a Checkbox first to Delete";

foreach (GridViewRow row in GridView1.Rows)

{

CheckBox chkSelect = (CheckBox)GridView1.Rows[row.RowIndex].FindControl("chkSelect");

if (chkSelect.Checked)

{

int code = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Values[0].ToString());

//here code is variable in which primary key taken from datakeys of gridview

//call delete function here with passing a primary key

lblmsg.Text = "Selected a Records Sucessfully Deleted.";

binddata();

}

protected void btnSelectAllB_Click(object sender, EventArgs e)

{

}

......................code behind end............................................

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Wednesday, 14 May 2014