Hey Sonali... I am having same Problem here with content page only.. Please help me to recover from this situation ... help reply the answer you got...

thanks for reply. but my problem has been solved. i put this code in my web.config

Plz confirm that whether u have used ASP.NET AJAX-Enabled Web Site or not,bcoz normal websites doesnot support scriptmanager tags.

whenever i use asp:ScriptManager in my content page. it gives error- ScriptManager is not a known element. in web.config i used plz give me suggestion thanks