Question

I’m facing a very buggy issue, in ASP.NET application after viewing the same report many times simultaneously I got this exception:

The maximum report processing jobs limit configured by your system
administrator has been reached.

Wait I know there are tons of solutions out there but all of them are not working with me.

1. I put ReportDocument.Close(); ReportDocument.Dispose(); in CrystalReportViewer_Unload event, and still throw the exception.

   Private Sub CrystalReportViewer1_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles CrystalReportViewer1.Unload
reportFile.Close()
reportFile.Dispose()
GC.Collect()
End Sub

2. I edit the PrintJobLimit registry in HKEY_LOCAL_MACHINE\SOFTWARE\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Report Application Server\InprocServer and HKEY_LOCAL_MACHINE\SOFTWARE\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Report Application Server\Server to -1 even to 9999, and still throw the exception.

Here is the code snippet where I call my report:

 Table_Infos = New TableLogOnInfos()
                Table_Info = New TableLogOnInfo()
                Con_Info = New ConnectionInfo()

                With Con_Info
                    .ServerName = ConfigurationManager.AppSettings("server_name")
                    .DatabaseName = ConfigurationManager.AppSettings("DB")
                    .UserID = user_name
                    .Password = pass_word
                    .Type = ConnectionInfoType.SQL
                    .IntegratedSecurity = False
                End With

                Table_Info.ConnectionInfo = Con_Info

                If Session("recpt_lang") = "Arabic" Then
                    reportFile.Load(Server.MapPath("/Reports/") & "collectrecpt_new_ar.rpt")
                ElseIf Session("recpt_lang") = "English" Then
                    reportFile.Load(Server.MapPath("/Reports/") & "collectrecpt_new.rpt")
                End If

                For Each mytable In reportFile.Database.Tables

                    mytable.ApplyLogOnInfo(Table_Info)

                Next

                CrystalReportViewer1.ReportSource = reportFile
                CrystalReportViewer1.SelectionFormula = Session("SelectionForumla")
                CrystalReportViewer1 = Nothing

Answer 1

I would recommend moving your close/dispose/gc.collect code outside of that unload process. In other words:

1. Load report
2. Assign to Viewer Control
3. Show Report in Viewer Control
4. Close Viewer Control and Unload (completely)
5. Then close/dispose/gc.collect outside of any viewer control code

My guess is the viewer control is not completely closed when the report is being cleaned up.

Crystal is a very memory intensive process and very finicky.