select all checkbox only works twice

Question

I got this code from stackoverflow which looks like a pretty good \"select all\" checkbox solution, any ideas why it fails after 2nd click?

http://jsfiddle.net/R9zj

Answer 1

Try using .attr('checked', 'checked')

$(document).ready(function () {
    $(document).on("click", ".selectall2", function () {
        $(this).closest('tr').find('input[type=checkbox]').attr('checked', 'checked');
    });
});