Directory.CreateDirectory(exportPath);
ReportDocument objReportDocument = new ReportDocument();
ExportOptions crExportOptions = new ExportOptions();
DiskFileDestinationOptions crDiskFileDestinationOptions = new
DiskFileDestinationOptions();

if (objEmailCriteriaVM.EmailAttachments.Contains(EmailAttachments.Ledger))
                {
                    reportName = EmailAttachments.Ledger.ToString();
                    ReportManager objReportManager = new ReportManager();
                    ArrayList parameterArrayList = new ArrayList();
                    parameterArrayList.Add(emailreceipent.stInvestor_code);
                    parameterArrayList.Add(objEmailCriteriaVM.fDate);
                    parameterArrayList.Add(objEmailCriteriaVM.tDate);
                    objReportDocument = objReportManager.GenerateReport(parameterArrayList, EmailAttachments.Ledger);
crExportOptions = ExportSingleReport(objReportDocument, crExportOptions,
crDiskFileDestinationOptions, emailreceipent.stInvestor_code);

                }

private ExportOptions ExportSingleReport(ReportDocument objReportDocument, ExportOptions crExportOptions, DiskFileDestinationOptions crDiskFileDestinationOptions, string investorCode)
    {
        crExportOptions = objReportDocument.ExportOptions;
        crDiskFileDestinationOptions.DiskFileName = exportPath + "\" + reportName + investorCode + ".pdf";
        crExportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
        crExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat;
        crExportOptions.DestinationOptions = crDiskFileDestinationOptions;
        try
        {
            objReportDocument.Export();
            IsSuccess = true;
        }
        catch (Exception ex)
        {
            IsSuccess = false;
        }
        finally
        {
            objReportDocument.Close();
            objReportDocument.Dispose();
        }
        return crExportOptions;
    }`