i have read this article [ScuttGu][1] for making use of User control to make Client side templates. and this one too [Ecnosia][2] [1]: http://weblogs.asp.net/scottgu/archive/2006/10/22/Tip_2F00_Trick_3A00_-Cool-UI-Templating-Technique-to-use-with-ASP.NET-AJAX-for-non_2D00_UpdatePanel-scenarios.aspx [2]: http://encosia.com/2008/06/26/use-jquery-and-aspnet-ajax-to-build-a-client-side-repeater/ are they the same, regarding performance ?