Crystal Reports setting print height in crystal report

Message


    private void crystalrep()

        {


            ReportDocument rptDoc = new ReportDocument();

         
            rptDoc.Load(Server.MapPath("~/Reports/CRDischarge.rpt"));

           // PaperSize p1 = new PaperSize();

           
            rptDoc.SetParameterValue("Name", lbname.Text);

            rptDoc.SetParameterValue("BillNo", Lbbillno.Text);

            rptDoc.SetParameterValue("Total", Lbtotalamnt.Text);

            rptDoc.SetParameterValue("RoomNo", txtroomnumber.Text);

            rptDoc.SetParameterValue("BedNo", txtbednumber.Text);

            rptDoc.SetParameterValue("Rent", lbrent.Text);

            rptDoc.SetParameterValue("Pharma", lbpharmaamnt.Text);

            rptDoc.SetParameterValue("Lab", lblabamnt.Text);

            rptDoc.SetParameterValue("Xray", lbxrayamnt.Text);

            rptDoc.SetParameterValue("Add", lbaddit.Text);

           // rptDoc.PrintOptions.PrinterName = "WeP CSX 450";

          
                rptDoc.PrintOptions.PaperSource = PaperSource.Auto;

                rptDoc.PrintOptions.PaperSize = PaperSize.DefaultPaperSize;


                CrystalDecisions.Shared.PageMargins edges = new CrystalDecisions.Shared.PageMargins(1, 1, 1, 1);

                rptDoc.PrintOptions.ApplyPageMargins(edges);


                CrystalReportViewer1.ReportSource = rptDoc;

                //CrystalReportViewer1.Refresh();

                CrystalReportViewer1.ReportSource = rptDoc;

                rptDoc.PrintOptions.PrinterName = "WeP CSX 450";


                rptDoc.PrintToPrinter(1, false, 0, 0);

            }

Am ussing this code to print ma crystal report in webforms application....but its printngin a4 page height..how can i stop the printer just after the content in the report is over....actually am printng in a roll paper for billing application..the height of paper may increase according to number of items purchased...thanks