I'm unable to trigger $(this).toggleClass('selected'); for content table. When I debug it just skip this event. How can I make sure its being selected?

$('#contentChangesTable tr')
    .filter(':has(:checkbox:checked)')
    .addClass('selected')
    .end()
    .click(function (event) {
        $(this).toggleClass('selected');
        if (event.target.type !== 'checkbox') {
            $(':checkbox', this).attr('checked', function () {
                return !this.checked;
            });
        }
    });