The other main control in RadAjax is the RadAjaxPanel. It provides the easiest AJAXification for the pages in your application. It works like an ASP.NET UpdatePanel, but there are no Triggers or UpdateMode property. Simply add a RadAjaxPanel to the page, and then add to it all the controls that should be updated as part of an AJAX request.
You have to carefully consider the controls you want in RadAjaxPanel because all the controls inside it will be updated with the AJAX update every time one of them initiates the request. If you have too many controls or all the controls in the page are inside RadAjaxPanel, you may actually reduce the performance of your page.
The smart tag for design-time support in RadAjaxPanel has all ...