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Failed to load report error using crystal reports and vb.net

Posted on 2008-10-27
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Last Modified: 2011-10-03
I am using a crystal reports that ships with visual studio.net to create customer accounts and after printing 67 reports to disc it is blowing out with "Load Report Failed" on the line cryRpt.Load(strReportName)

I think perhaps I am not closing something or disposing of something, the code I am using is attached - I loop over my customer set (of about 300) and call this routine every time. My report is linked to a table in sql server 2005.

Private Sub ConfigureInvoiceAccRunRpt()
 

        Dim myConnectionInfo As ConnectionInfo = New ConnectionInfo()

        Dim strReportName As String = ""

        Try
 

            myConnectionInfo.AllowCustomConnection = True

            myConnectionInfo.DatabaseName = "MyDb"

            myConnectionInfo.ServerName = MyServerName

            myConnectionInfo.IntegratedSecurity = True

            myConnectionInfo.Type = ConnectionInfoType.SQL
 

            strReportName = "C:\Invoice.rpt"
 

            Dim cryRpt As New ReportDocument

            cryRpt.Load(strReportName)  '<-- fails here after 67 times
 

            SetDBLogonForReport(myConnectionInfo, cryRpt)
 

            Dim crParameterFieldDefinitions As ParameterFieldDefinitions

            Dim crParameterFieldDefinition As ParameterFieldDefinition

            Dim crParameterValues As New ParameterValues

            Dim crParameterDiscreteValue As New ParameterDiscreteValue
 

            crParameterValues.Clear()

            crParameterFieldDefinitions = cryRpt.DataDefinition.ParameterFields
 

            crParameterDiscreteValue.Value = 3

            crParameterFieldDefinition = crParameterFieldDefinitions.Item("SiteID")

            crParameterValues = crParameterFieldDefinition.CurrentValues

            crParameterValues.Add(crParameterDiscreteValue)

            crParameterFieldDefinition.ApplyCurrentValues(crParameterValues)

           

             cryRpt.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.CrystalReport, "C:\Spool\Accounts\Customername.rpt")
 

        Catch

            MsgBox(Err.Description)

        Finally

        End Try
 

    End Sub

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Question by:alexking
2 Comments
 
LVL 69

Accepted Solution

by:
Éric Moreau earned 500 total points
ID: 22811559
I had the very same problem (except that my trigger was at 75). I ended fixing the problem by calling all the appropriate Dispose and Close methods on each object that was having them and setting my objects to Nothing.

Try something like this:

    Private Sub ConfigureInvoiceAccRunRpt()
 

        Dim myConnectionInfo As ConnectionInfo = New ConnectionInfo()

        Dim strReportName As String = ""
 

        Dim cryRpt As New ReportDocument
 

        Try
 

            myConnectionInfo.AllowCustomConnection = True

            myConnectionInfo.DatabaseName = "MyDb"

            myConnectionInfo.ServerName = MyServerName

            myConnectionInfo.IntegratedSecurity = True

            myConnectionInfo.Type = ConnectionInfoType.SQL
 

            strReportName = "C:\Invoice.rpt"
 

            cryRpt.Load(strReportName)  '<-- fails here after 67 times
 

            SetDBLogonForReport(myConnectionInfo, cryRpt)
 

            Dim crParameterFieldDefinitions As ParameterFieldDefinitions

            Dim crParameterFieldDefinition As ParameterFieldDefinition

            Dim crParameterValues As New ParameterValues

            Dim crParameterDiscreteValue As New ParameterDiscreteValue
 

            crParameterValues.Clear()

            crParameterFieldDefinitions = cryRpt.DataDefinition.ParameterFields
 

            crParameterDiscreteValue.Value = 3

            crParameterFieldDefinition = crParameterFieldDefinitions.Item("SiteID")

            crParameterValues = crParameterFieldDefinition.CurrentValues

            crParameterValues.Add(crParameterDiscreteValue)

            crParameterFieldDefinition.ApplyCurrentValues(crParameterValues)
 

            cryRpt.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.CrystalReport, "C:\Spool\Accounts\Customername.rpt")
 

        Catch

            MsgBox(Err.Description)

        Finally

            cryRpt.Close()

            cryRpt.Dispose()

            cryRpt = Nothing
 

            myConnectionInfo = Nothing

        End Try

    End Sub

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Author Comment

by:alexking
ID: 22811634
Many thanks - its hard to find much documentation about this, seems to be a well kept secret! I only traced the error by using the activity monitor in SQL server management studio in the first place.

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