其它程序的二次开发，以ActiveX形式集成了水晶报表，Pull模式没有问题，但Push模式，设置CrystalActiveXReportViewer的数据源出错!

Question

使用CrystalActiveXReportViewer 进行预览的
Pull模式，数据源为CRAXDRT.Report没有问题        public void Print_Pull()
        {
            SAPbouiCOM.Form oFormPrint = null ;
            SAPbouiCOM.Item oItem = null;
            SAPbouiCOM.ActiveX ax = null;            Application app = null;
            Report report = null;
            CrystalActiveXReportViewer  CAXView = null;            string rptFile = @"D:\CReport_Pull.rpt";
            try
            {
                report = new Report();
                app = new Application();
                
                oFormPrint = Globals.SBO_Application.Forms.Add("FrmReport", SAPbouiCOM.BoFormTypes.ft_Sizable, 100100);
                // set the form properties
                oFormPrint.Title = "Print Preview Form";
                oFormPrint.Left = 300;
                oFormPrint.Top = 50;
                oFormPrint.ClientHeight = 600;
                oFormPrint.ClientWidth = 800;                oItem = oFormPrint.Items.Add("atx", SAPbouiCOM.BoFormItemTypes.it_ACTIVE_X);
                oItem.Top = 0;
                oItem.Left = 0;
                oItem.Width = oFormPrint.Width;
                oItem.Height = oFormPrint.Height;
                oItem.Visible = true;
                ax = (SAPbouiCOM.ActiveX)oItem.Specific;                ax.ClassID = "CrystalReports115.ActiveXReportViewer.1";  //CrystalReports11.ActiveXReportViewer.1                CAXView = (CrystalActiveXReportViewer)ax.Object;            }
            catch (Exception ex)
            {
                oFormPrint.Close();
                Console.WriteLine(ex.Message);
            }            //add crystall report
            try
            {
                report = app.OpenReport(rptFile, 1);                foreach (CRAXDRT.DatabaseTable dob_Table in report.Database.Tables)
                {
                    dob_Table.SetLogOnInfo("127.0.0.1", "GY2007", "sa", "qwer");
                }                 //Print Preview
                CAXView.ReportSource = report ;                CAXView.DisplayGroupTree = false;                CAXView.ViewReport();                oFormPrint.Visible = true;                Globals.showStatsMsg("打印完成!", 1);            }
            catch (Exception ex)
            {
                oFormPrint.Close();
                Console.WriteLine(ex.Message);
            }        }
但是Push模式，好像都是绑定的ReportDocument的，设置数据源时出现错误了
        // Push模式：由查询语句生成数据，填充数据源
        // CrystalDecisions.CrystalReports.Engine.ReportDocument
        public void showForm1()
        {
            SAPbouiCOM.Form oFormPrint = null;
            SAPbouiCOM.Item oItem = null;
            SAPbouiCOM.ActiveX ax = null;            ReportDocument oRptDoc = null;
            Report report = null;
            CrystalActiveXReportViewer CAXView = null;            string rptFile = @"D:\CReport_Pull.rpt";            try
            {                oRptDoc = new ReportDocument();
                report = new Report();                oFormPrint = Globals.SBO_Application.Forms.Add("FrmReport", SAPbouiCOM.BoFormTypes.ft_Sizable, 100100);
                // set the form properties
                oFormPrint.Title = "Print Preview Form";
                oFormPrint.Left = 300;
                oFormPrint.Top = 50;
                oFormPrint.ClientHeight = 600;
                oFormPrint.ClientWidth = 800;                oItem = oFormPrint.Items.Add("atx", SAPbouiCOM.BoFormItemTypes.it_ACTIVE_X);
                oItem.Top = 0;
                oItem.Left = 0;
                oItem.Width = oFormPrint.Width;
                oItem.Height = oFormPrint.Height;
                oItem.Visible = true;
                ax = (SAPbouiCOM.ActiveX)oItem.Specific;                ax.ClassID = "CrystalReports115.ActiveXReportViewer.1";  //CrystalReports11.ActiveXReportViewer.1                CAXView = (CrystalActiveXReportViewer)ax.Object;
            }
            catch (Exception ex)
            {
                oFormPrint.Close();
                Console.WriteLine(ex.Message);
            }            try
            {
                oRptDoc.Load(rptFile);                if (ConnDB())
                {
                    oCommand.CommandText = @"SELECT U_ITEMSN, U_CHECKID, U_CAUSE FROM [@CHECKUP]";                    SqlDataAdapter sda = new SqlDataAdapter(oCommand);                    DataSet dataSet = new DataSet();                    sda.Fill(dataSet, "CHECKUP");                    oRptDoc.SetDataSource(dataSet.Tables[0]);                    //report.p
                }                //Print Preview
                CAXView.ReportSource = oRptDoc;  //在这里出错!                CAXView.DisplayGroupTree = false;                CAXView.ViewReport();                oFormPrint.Visible = true;                Globals.showStatsMsg("打印完成!", 1);            }
            catch (Exception ex)
            {
                oFormPrint.Close();
                Console.WriteLine(ex.Message);
            }        } 
请问：Report与ReportDocument有什么区别呢，能不能做转换呀? 如何设置CrystalActiveXReportViewer的数据源呀? 谢谢