asp.net - export crystal report to pdf without temp file programmatically in asp net

Question

how to export crystal report to pdf without temp file programmatically in asp net from server to end user. If we remove write access of temp folder , then it will cause error.Our admin not giving access to it.Is that any option to export crystal report to pdf for end user. Please suggest.

        reportDocument.Load(this.MapPath("xyz.rpt"));
        reportDocument.Database.Tables[0].SetDataSource(dsReport.Tables[0]);           
        rptviewer.ReportSource = Salary_reportDocument;
        rptviewer.Visible = true;
        rptviewer.DataBind();
        reportDocument.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "XYZReport");

Answer 1

像这样的东西

 {
        ExportOptions CrExportOptions ;
        DiskFileDestinationOptions CrDiskFileDestinationOptions = new DiskFileDestinationOptions();
        PdfRtfWordFormatOptions CrFormatTypeOptions = new PdfRtfWordFormatOptions();
        CrDiskFileDestinationOptions.DiskFileName = "c:\\csharp.net-informations.pdf";
        CrExportOptions = cryRpt.ExportOptions;
        {
            CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
            CrExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat;
            CrExportOptions.DestinationOptions = CrDiskFileDestinationOptions;
            CrExportOptions.FormatOptions = CrFormatTypeOptions;
        }
        cryRpt.Export();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.ToString());
    }