ReportDocument 属性 ReportClientDocument 的用法,该怎么解决

         ReportDocument reportDocument = new ReportDocument();            reportDocument.Load(@"C:\RptContainer.rpt");            ISCDReportClientDocument reportClientDocument = reportDocument.ReportClientDocument;

 
 using System; 
 using System.Windows.Forms; 
 using CrystalDecisions.Shared; 
 using CrystalDecisions.Windows.Forms; 
 using CrystalDecisions.CrystalReports.Engine; 
 using CrystalDecisions.ReportAppServer.ClientDoc; 
 using CrystalDecisions.ReportAppServer.Controllers; 
  
 namespace CS_APP_AddSubReportRuntime 
 { 
   public partial class Form1 : Form 
   { 
     public Form1() 
     { 
       InitializeComponent(); 
     } 
  
     private void Form1_Load(object sender, EventArgs e) 
     { 
       ReportDocument boReportDocument =new ReportDocument(); 
       ISCDReportClientDocument boReportClientDocument ; 
       CrystalDecisions.ReportAppServer.Controllers.SubreportClientDocument boSubreportClientDocument; 
       CrystalDecisions.ReportAppServer.ReportDefModel.Section boSection ; 
       String strSubRptFile =""; 
  
      
     //加载主报表 
      boReportDocument.Load(@"E:\CRQuestions\CS_APP_AddSubReportRuntime\Crystalreport1.rpt"); 
  
 /*---------------------------------------- 
 如果要进行数据、参数、公式操作，请在此处对主报表boReportDocument进行操作 
 ----------------------------------------*/ 
  
     boReportClientDocument = new ReportClientDocumentClass(); 
     //由主报表返回待RAS操作的ReportClientDocument 
     boReportClientDocument = boReportDocument.ReportClientDocument; 
  
  
     //获取到第一个section，用来放置子报表 
     boSection = boReportClientDocument.ReportDefController.ReportDefinition.PageHeaderArea.Sections[0]; 
  
     //待加载的子报表 
     strSubRptFile = @"E:\CRQuestions\CS_APP_AddSubReportRuntime\sub1.rpt"; 
  
     //导入子报表,ss1是子报表对象在主报表上的名称 
     boSubreportClientDocument = boReportClientDocument.SubreportController.ImportSubreport("ss1", strSubRptFile, boSection); 
 /*---------------------------------------- 
 如果要进行数据、参数、公式操作，请在此处对子报表boSubreportClientDocument 进行操作 
 ----------------------------------------*/ 
  
  
     //刷新Viewer 
     crystalReportViewer1.ReportSource = boReportDocument; 
    
     } 
  
      
   } 
 }