Question

I have a Crystal report with 50 odd subreports, each with loads of parameters. Switching it from one database to another takes ages as the Crystal Reports IDE insists that you enter all the parameters for each sub-report.

I’m wondering if it’s possible to write a quick tool in C# to view the current database config of all of the sub-reports in an rpt file, and ideally to switch to a different database.

Unfortunately (or fortunately) I don’t have much experience of the Crystal object model – anyone know where to start?

Thanks,
Jon.

Answer 1

This should do the job. Obviously replace the passwords and User names where neccesary.

Private Sub ProcessFile(ByVal FileName As String)
        Dim CR As Engine.ReportDocument = Nothing
        Try
            CR = New Engine.ReportDocument
            CR.Load(FileName, CrystalDecisions.Shared.OpenReportMethod.OpenReportByDefault)

            'Recurse thru Report
            RecurseAndRemap(CR)
            'Save File
            CR.SaveAs("OutPutFilePath")

        Catch ex As Exception
            MessageBox.Show(ex.Message)
        Finally
            If Not CR Is Nothing Then
                CR.Close()
                CR.Dispose()
            End If
        End Try
    End Sub

    Private Sub RecurseAndRemap(ByVal CR As Engine.ReportDocument)
        For Each DSC As CrystalDecisions.Shared.IConnectionInfo In CR.DataSourceConnections
            DSC.SetLogon("YourUserName", "YourPassword")
            DSC.SetConnection("YouServerName", "YourDatabaseName", False)
        Next

        CR.SetDatabaseLogon("YourUserName", "YourPassword")

        For Each Table As Engine.Table In CR.Database.Tables
            Table.LogOnInfo.ConnectionInfo.UserID = "YourUserName"
            Table.LogOnInfo.ConnectionInfo.Password = "YourPassword"
        Next

        If Not CR.IsSubreport Then
            For Each SR As Engine.ReportDocument In CR.Subreports
                RecurseAndRemap(SR)
            Next
        End If
    End Sub

Hope that helps Cheers Ben