Generating PDF for printing without exporting to disk?

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Using: Visual Studio.NET Crystal Reports, ASP.NET, C#

The following code takes my parameters into the report, exports to a pdf on the client side and redirects the client to the PDF file. I need to load the pdf without leaving a file on the client or server. My basis for comparison is the way the CrystalReportViewer handles the PDF before printing. I have not been able to see where the PDF file goes though once you click on the "OK" button and the PDF generates, but that is my goal if it can run in memory somehow.

1 protected void Page_Load(object sender, EventArgs e)
2 {
3 Session["Var"] = 9;
4
5 ParameterField pf1 = new ParameterField();
6 ParameterDiscreteValue pd1 = new ParameterDiscreteValue();
7 ParameterValues pv1 = new ParameterValues();
8
9 pf1.Name = "SelectParameter";
10 pd1.Value = Int32.Parse(Session["Var"].ToString());
11 pf1.CurrentValues.Add(pd1);
12
13 string path = "c:\\windows\\temp\\";
14 string strFileName = path + "GenForm.pdf";
15
16 ReportDocument rptDoc = new ReportDocument();
17 rptDoc.Load(Server.MapPath(@"GenForm.rpt"));
18
19 ExportOptions exportOpts = new ExportOptions();
20 PdfRtfWordFormatOptions pdfopts = new PdfRtfWordFormatOptions();
21 DiskFileDestinationOptions diskOpts = new DiskFileDestinationOptions();
22 exportOpts = rptDoc.ExportOptions;
23 exportOpts.ExportFormatType = ExportFormatType.PortableDocFormat;
24 exportOpts.FormatOptions = pdfopts;
25 exportOpts.ExportDestinationType = ExportDestinationType.DiskFile;
26 // diskOpts.DiskFileName = Server.MapPath(strFileName);
27 diskOpts.DiskFileName = path + strFileName;
28 exportOpts.DestinationOptions = diskOpts;
29 rptDoc.SetParameterValue("SelectParameter", pd1);
30 rptDoc.SetParameterValue("SubReportParameter", pd1);
31 rptDoc.ExportToDisk(ExportFormatType.PortableDocFormat, (strFileName));
32 Response.ClearContent();
33 Response.ClearHeaders();
34 Response.ContentType = "application/pdf";
35 Response.WriteFile(strFileName);
36 Response.Flush();
37 Response.Close();
38 // rptDoc.Export();
39 // rptDoc.PrintToPrinter(1, false, 0, 0);
40 System.IO.File.Delete(path + strFileName);
41 Response.Redirect((path + strFileName));
42 }


Anyone who has any resources that can help would be greatly appreciated. Thank you in advance!