RadGrid for ASP.NET

AJAX for controls inside Telerik RadGrid Send comments on this topic.
AJAX > The Basics > AJAX for controls inside Telerik RadGrid

Glossary Item Box

When you set RadGrid's property EnableAJAX to true, the ASP.NET controls will make use of  the grid's build-in AJAX mechanism and make callbacks by default instead of normal postbacks without any other additional coding.
Even third-party complex rich-javascript controls can take advantage of Telerik RadGrid's AJAX mechanism by using the RadGrid.AjaxRequest client-side method to fire asynchronous post-back requests.

 
 Note: You should use Telerik RadAjax controls to update controls outside of grid's body on asynchronous request.