title: The using of ajax in asp.net
body: <p>I'm a little bit confused about which method to use : <br>
  1- using Jquery to call HttpHandler page that implement an order .<br>
  2- using ICALLBACKEventHandler - <a href="http://www.ajaxmatters.com/2006/05/using-icallbackeventhandler-in-asp-net/" rel="nofollow noreferrer"> read more</a> .<br>
  Can you give me some advise about which one is more efficient to use.
  <br> Thanks</p>