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Introduction

Here I will explain how to use jQuery to select deselect all checkboxes or check uncheck all checkboxes using jQuery.


To implement this we need to write the code like as shown below


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>jQuery Select Deselect all Checkboxes</title>
<script src="http://code.jquery.com/jquery-1.8.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('input[name="chkUser"]').click(function () {
if ($('input[name="chkUser"]').length == $('input[name="chkUser"]:checked').length) {
$('input:checkbox[name="chkAll"]').attr("checked", "checked");
}
else {
$('input:checkbox[name="chkAll"]').removeAttr("checked");
}
});
$('input:checkbox[name="chkAll"]').click(function () {
var slvals = []
if ($(this).is(':checked')) {
$('input[name="chkUser"]').attr("checked", true);
}
else {
$('input[name="chkUser"]').attr("checked", false);
slvals = null;
}
});
})
</script>
<style type="text/css">
li
{
list-style-type:none;
}
</style></head>
<body>
<ul>
<li><label><input type="checkbox" name="chkAll" value="All"/>
Select All
</label></li>
<li><label><input type="checkbox" name="chkUser" value="3930"/>Suresh</label></li>
<li><label><input type="checkbox" name="chkUser" value="4049"/>Rhoini</label></li>
<li><label><input type="checkbox" name="chkUser" value="4076"/>Mahesh</label></li>
<li><label><input type="checkbox" name="chkUser" value="4086"/>Mahendra</label></li>
<li><label><input type="checkbox" name="chkUser" value="4087"/>Madhav</label></li>
<li><label><input type="checkbox" name="chkUser" value="4116"/>Honey</label></li>
<li><label><input type="checkbox" name="chkUser" value="4143"/>Sateesh</label></li>
<li><label><input type="checkbox" name="chkUser" value="4296"/>Praveen</label></li>
</ul>
</body>
</html>
Demo


Note: if you are using asp.net checkbox controls then you need to replace

$('input:checkbox[name="chkAll"]') with ('[id$= chkAll]')

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