I have a visual studio 2008 with .NET 3.5 Web application. I am using crystal report version 10.5 for the reporting. I need to export the crystal report to the PDF file. When I export the report in the PDF file without setting the parameter, it is working fine. But when I pass a parameter into the report it shows the following issue
"Missing parameter values."
at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export()
at CrystalDecisions.CrystalReports.Engine.ReportDocument.Export()
at Web.Manager.GetReport() in c:\Model 2008 \mypage.aspx.cs:line 267
Below is the code
private void GetReport(Dataset dsModel)
{
ReportDocument crReportDocument;
crReportDocument = new ReportDocument();
crReportDocument.Load(Server.MapPath("MyReport.rpt"));
ParameterValues pvValues = new ParameterValues();
ParameterDiscreteValue pdvDiscreteValue = new ParameterDiscreteValue();
pdvDiscreteValue.Value = Session["myname"].ToString();
pvValues.Add(pdvDiscreteValue);
ParameterFieldDefinitions pfdDefinitions = crReportDocument.DataDefinition.ParameterFields;
ParameterFieldDefinition prdDefinition = pfdDefinitions["Parameter1"];
prdDefinition.ApplyCurrentValues(pvValues);
crvManagerByBank.Visible = true;
crReportDocument.SetDataSource(dsModel);
crvManagerByBank.ReportSource = crReportDocument;
string Fname = ConfigurationSettings.AppSettings["TempFolder"];
Fname = Fname + Session.SessionID.ToString() + ".pdf";
ExportOptions crExportOptions = new ExportOptions();
DiskFileDestinationOptions crDiskFileDestinationOptions = new DiskFileDestinationOptions();
crDiskFileDestinationOptions.DiskFileName = Fname;
crExportOptions = crReportDocument.ExportOptions;
crExportOptions.DestinationOptions = crDiskFileDestinationOptions;
crExportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
crExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat;
try
{
crReportDocument.Export(); -- Showing error in this line
}
catch (Exception)
{
throw;
}
Response.ClearContent();
Response.ClearHeaders();
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=" + Fname);
Response.TransmitFile(Fname);
HttpContext.Current.ApplicationInstance.CompleteRequest();
Response.Flush();
Response.Close();
System.IO.File.Delete(Fname);
}
}
Throwing the exception when it calls the Export() function.