Print and Export button doesn't work for Crystal Report in VS 2008

Question

Hi,
When I click on the Export/Print button, it looks as if something is happening but no window comes up. Below is the code in C#
        ExportOptions crExportOptions;
        DiskFileDestinationOptions crDiskFileDestinationOptions;
ReportDocument cr = new ReportDocument();
DataTable dt = new DataTable();
        cr.Load(strReportPath);
        cr.SetDataSource(dt);
        string Fname;
        if (!System.IO.File.Exists(strReportPath))
            throw (new Exception("Unable to locate report file:\n" + strReportPath));
        //CrystalReportSource1.ReportDocument.
        // Set the Crytal Report Viewer control's source to the report document.       
        CrystalReportViewer1.ReportSource = cr;
        // cr.PrintToPrinter(1, False, 0, 0)
        Fname = Request.PhysicalApplicationPath.ToString() + Session.SessionID.ToString() + ".rpt";
        crDiskFileDestinationOptions = new DiskFileDestinationOptions();
        crDiskFileDestinationOptions.DiskFileName = Fname;
        crExportOptions = cr.ExportOptions;
        crExportOptions.DestinationOptions = crDiskFileDestinationOptions;
        crExportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
        crExportOptions.ExportFormatType = ExportFormatType.CrystalReport;
        cr.Export();
Can anyone tell me why is this happening, need to fix this urgently.
Thanks,
Reena

Answer 1

Hi,
I removed all the export code, now when the Page loads. When I click on the export/print button still nothing happens.
"Error in File C:\DOCUME1\rpatel\LOCALS1\Temp\DailyTransaction {0CE72E59-0AF6-4859-9173-EF563869CBBF}.rpt: Invalid export DLL or export format. "
My code:
ReportDocument cr = new ReportDocument();
DataTable dt = new DataTable();
string strReportPath = string.Empty;
cr.SetDataSource(dt);
cr.Load(strReportPath);
string Fname;
        if (!System.IO.File.Exists(strReportPath))
            throw (new Exception("Unable to locate report file:\n" + strReportPath));
CrystalReportViewer1.ReportSource = cr;
Fname = Request.PhysicalApplicationPath.ToString() + Session.SessionID.ToString() + ".rpt";
cr.Export();
The sample has Delphi example, it would be good if there is a C#/VB sample available.
Thanks.