Asp.net & ReportViewer 10 problem

See more:

ASP.NET

reporting

Hi, every body

i have a problem with reportviewer and Ienumerable data collection,

i used from rdlc reports and reportviewer 10 control to show some information that comes from a Entityframework data model and binded to Reportdatasource as ienumerable collection,

i did see the report but now when i want to see the report i see this error :

An error has occurred during report processing.
The ObjectContext instance has been disposed and can no longer be used for operations that require a connection.

i dont know why my report does not work properly , becuase of this report was correct and now is damaged.
i switched to reportviewer 9 but i had some problem with that and again used version 10 .

please help

sorry for bad english .
tnx