rdlc无法显示子报表

Question

     private void printPat_Load(object sender, EventArgs e)
        {
            this.reportViewer1.LocalReport.ReportPath = "SoSPlan\\Print.rdlc";
            IPat ipat = Common.GetInterface<IPat>();
            DataTable Table = ipat.SelectByPatNumber(PatNum,caseName);            //ISystemUser User = Common.GetInterface<ISystemUser>();
            IDrugList User = Common.GetInterface<IDrugList>();
            DataTable userTable = User.SelectByUserID(Context.UserId);            this.reportViewer1.LocalReport.SubreportProcessing += new Microsoft.Reporting.WinForms.SubreportProcessingEventHandler(LocalReport_SubreportProcessing);
            this.reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("REMISDataSet_tblPat", Table));
            this.reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("REMISDataSet_CaseInformation", Table));
            this.reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("REMISDataSet1_EP_QX_USER", userTable));
            this.reportViewer1.Dock = DockStyle.Fill;
            this.Controls.Add(reportViewer1);
            this.reportViewer1.RefreshReport();
        }        void LocalReport_SubreportProcessing(object sender, Microsoft.Reporting.WinForms.SubreportProcessingEventArgs e)
        {
            IDrugList drug = Common.GetInterface<IDrugList>();
            DataTable medications = drug.MedicationsSelect(PatNum);
            int ss = medications.Rows.Count;
            e.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("REMISDataSet2_tblPat_medications", medications));
        }大侠们帮我看看啊，提示无法显示子报表，在线等