Reporting Services - Session Expired Error When Viewing A Report?

Oct 11, 2010

I am getting "ASP.NET session has expired" error when viewing a (SQL server reporting services) report using report viewer control. sometimes it works fine and sometimes I get this error, it works fine in Dev, but not in test environment. Please let me know if you have any clues.here is the code for the report viewer control.

ReportViewer1.ServerReport.ReportServerUrl =
new Uri(System.Configuration.ConfigurationManager.AppSettings["ReportServerUrl"]);
ReportViewer1.ServerReport.ReportPath = System.Configuration.ConfigurationManager.AppSettings["ReportPath"];
ReportViewer1.ServerReport.SetParameters(new List<ReportParameter> { new ReportParameter("key", "value") });
ReportViewer1.DataBind();

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