Thanks Steve for you quick response.
I am using VS-2010 Professional and I have tried two or three time but i am still facing the same problem.
Apart from that i have one more query to you
@ HI Robert and Steve,
I saw the Creating a Simple Report
link which is provided by you this link
. I just wanted to know for my curiosity, it is possible use web service instead of SQL Sever server for mapping fields; in my case I am using .NET Web Service only ?
In my silverlight application data comes from web-service in this case i want to use generate a report (using Telerik Component for better look and feel) using web-service. so please do let me know it is possible generate telerik report using web service.