動態添加報表中的控件

//...
CrystalDecisions.ReportAppServer.ReportDefModel.TextObject to1=new CrystalDecisions.ReportAppServer.ReportDefModel.TextObject();
to1.Name ="text001";

boReportClientDocument.ReportDefController.ReportDefinition.PageHeaderArea.Sections[0].ReportObjects.Add(to1);
CrystalDecisions.CrystalReports.Engine.TextObject to2;
to2 = (CrystalDecisions.CrystalReports.Engine.TextObject)boReportDocument.ReportDefinition.ReportObjects[0];
to2.Text = "xxxxxxx";
//刷新Viewer
crystalReportViewer1.ReportSource = boReportDocument;