User555306248 posted
Hi,
Please check the below reference to get Url Rewriting to work with Asp.Net Ajax:
http://blog.angrypets.com/2007/01/aspnet_ajax_and.html
If you take out the update panel and just do a normal post, you will see that the page will actually post directly to the unmapped url. That means your url rewriting is gone after a postback. That probably isn't what you would want, correct? If you implement
a url rewriting scheme that actually changes what the form action is, so that posts go to the mapped url instead, not only will it avoid this issue, but it will work better in general. With this scheme, you have the possibility of the server side thinking
the current request is in a different directory than the browser thinks, so things like ResolveClientUrl may report unusable paths. Any way you look at it, its best to avoid that scenario in the first place, so I recommend you take a look at the url rewriting
post by Scott Guthrie,
http://weblogs.asp.net/scottgu/archive/2007/02/26/tip-trick-url-rewriting-with-asp-net.aspx