Im getting this error:-
The type 'System.Web.UI.ExtenderControl' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.C:\Users\User\Documents\Visual Studio 2005\deepali\mywork\Animation_Control.aspx
can anyone please help me solve it?