Question

I have an asp.net web form with a button, label, scriptmanager and updatepanel controls. When I click the button, the label changes using ajax. How can I detect the change in the label using javascript?

Answer 1

You need to use add_endRequest,

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(endRequestHandler);

function endRequestHandler(sender, args)
{
     alert("ended");
}