Description:-
In this example we explain that how to check atleast
one checkbox is checked or not in gridview checkbox in asp.net using javascript and jquery. Or how to validate to
check at least one checkbox is checked in the Gridview in ASP.NET using JQuery.
This is common requirement in every webforms in application like in Gridview we provide facility to end user to delete multiple rows in gridview by selecting or checked checkbox in gridview. So there is a requirement when user click on delete button at that first we must have to validate or check that atleast one checkbox is checked in gridview or not. If user not checked any checkbox in gridview and directally click on Delete button then proper alert message will be display like "please select/check atleast one checkbox row that you want to delete".
So how to perform or validate checkbox is checked or not in gridview in asp.net using javascript/jquery.
This is common requirement in every webforms in application like in Gridview we provide facility to end user to delete multiple rows in gridview by selecting or checked checkbox in gridview. So there is a requirement when user click on delete button at that first we must have to validate or check that atleast one checkbox is checked in gridview or not. If user not checked any checkbox in gridview and directally click on Delete button then proper alert message will be display like "please select/check atleast one checkbox row that you want to delete".
So how to perform or validate checkbox is checked or not in gridview in asp.net using javascript/jquery.
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Default3.aspx:-
<%@
Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!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>How to
Create Watermark Text for TexBox in asp.net using jquery</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"
type="text/javascript"></script>
<script language="javascript">
$(document).ready(function () {
$('#btn_submit').click(function () {
var
chkboxrowcount = $("#<%=gv_employee.ClientID%>
input[id*='chk_selectrow']:checkbox:checked").size();
if
(chkboxrowcount == 0) {
alert("please select at least one record");
return
false;
}
return
true;
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="gv_employee" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField>
<HeaderTemplate>
Select CheckBox
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox runat="server" ID="chk_selectrow" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Emp_ID" HeaderText="Emp_ID" />
<asp:BoundField DataField="Emp_name" HeaderText="Emp_name" />
<asp:BoundField DataField="Address" HeaderText="Address" />
</Columns>
</asp:GridView>
<br />
<asp:Button ID="btn_submit" Text="Submit" runat="server" />
</form>
</body>
</html>
Default3.aspx.cs:-
using System;
using System.Data;
using
System.Configuration;
using
System.Collections;
using
System.Collections.Generic;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using
System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
public partial class Default3 : System.Web.UI.Page
{
protected void Page_Load(object
sender, EventArgs e)
{
if
(!IsPostBack)
{
DataTable
dt = new DataTable();
dt.Columns.Add("Emp_ID");
dt.Columns.Add("Emp_name");
dt.Columns.Add("Address");
DataRow
dr = dt.NewRow();
dr[0] = 1;
dr[1] = "kirit";
dr[2] = "Ahmedabad";
dt.Rows.Add(dr);
DataRow
dr1 = dt.NewRow();
dr1[0] = 2;
dr1[1] = "pintu";
dr1[2] = "Rajkot";
dt.Rows.Add(dr1);
DataRow
dr2 = dt.NewRow();
dr1[0] = 3;
dr1[1] = "Rahul";
dr1[2] = "surat";
dt.Rows.Add(dr2);
gv_employee.DataSource = dt;
gv_employee.DataBind();
}
}
}
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