I have been getting error when i add ReportViewer Control on dynamically loaded user control. In IE, it says "ClientControllerctl00_cphContent_ASP is undefined". If I try to run in Firefox, the page is broken giving the error " Microsoft.Reporting.WebForms.HttpHandlerInputExcep tion: Invalid script identifier". If i add the same control in aspx page, then it runs fine.

I tried to google, but no luck. Is it true that ReportViewerControl can't be added to ascx page? please help.

 thanks.