It is userObjectDataSource (IList<User> GetUsers()) as report DataSource. Also it is a List in details report section and it is an ObjectDataSource (IList<string> GetPrivileges(int userId)) as DataSource for this List. How can I set UserId from userObjectDataSource as value for parameter of ObjectDataSource? I tried ObjectDataSource->Parameters->Value-><Expression>->Fields, but - No Data Source found. It should be one list of privileges for each user. Implementation through SubReport incorrect displayed after export in to PDF or TIFF. Can you help me?