Hi There, i am working on asp.net 4.0 with telerik asp.net ajax control. The problem i am facing is that all the controls are not working but the same files were working in asp.net 3.5, for example i am attaching a error page which is showing a radcombobox as a text box. I am not being able to figure out the issue/bug whether it is because of RadStyleSheetManager or RadScriptManager. Kindly help me with this issue.
Probably it is an upgrade problem. You should open a support ticket and send is a project, which demonstrates the issue to examine it locally.