How to trigger checkbox click event even if it's checked through Javascript code?

Question

I have many checkboxes in my page and there is a select all checkbox which checks all the checkboxes. Somehow I want to emulate that click event of checkbox even if it's checked/unchecked through select all button. How can I do it?

Answer 1

You can use the jQuery .trigger() method. See http://api.jquery.com/trigger/

E.g.:

$('#foo').trigger('click'); 

Answer 2

Getting check status

var checked = $("#selectall").is(":checked"); 

Then for setting

$("input:checkbox").attr("checked",checked);