asp:checkbox check all checkboxes using jQuery

asp-net-check-all.js

// Checks all individual checkboxes
$(".checkAreaAll").children("input").click(function () {

$(".checkArea").children("input").attr('checked', $(".checkAreaAll").children("input").is(':checked'));

});

// unchecks the check all checkbox when one individual checkbox is unchecked
$(".checkArea").children("input").click(function () {

$(".checkAreaAll").children("input").attr('checked', false);

});