Url Rewriting VS Postback

To Resolve a problem in postback for url rewriting,
you can use control adaptor and rewrite the form.

public class FormRewriter : System.Web.UI.Adapters.ControlAdapter

more information : visit : http://weblogs.asp.net/scottgu/archive/2007/02/26/tip-trick-url-rewriting-with-asp-net.aspx