Hello,
Okay, you can try this approach.
1. Replace with this:
function afterrender(sender, eOpts)
{
sender.getEl().dom.addEventListener('click', function(e) {
if (e.target && e.target.classList[0] == 'x-boundlist-item') {
ajaxRequest(sender, '_click', ['dataindex='+e.target.getAttribute('data-recordindex')]);
} else if (e.target && e.target.type && e.target.type == "checkbox") {
ajaxRequest(sender, '_click', ['dataindex='+e.target.getAttribute('tag')]);
}
});
}
...