private AxCrystalActiveXReportViewerLib10.AxCrystalActiveXReportViewer axCrystalActiveXReportViewer1;
private TestActiveXCrystalReportViewer.ReportsDS reportsDS1;
// ..............................

ApplicationClass app2 = new CRAXDDRT20.ApplicationClass(); 
				Report rap = new CRAXDDRT20.ReportClass();				
				rap = app2.OpenReport(@"RepTotalData.rpt", CRAXDDRT20.CROpenReportMethod.crOpenReportByDefault);				
				rap.Database.SetDataSource(reportsDS1,  3 ,  1 );

				axCrystalActiveXReportViewer1.ReportSource = rap;				
				axCrystalActiveXReportViewer1.ViewReport();