Rdlc子報表的動態添加

大概注意事項:

1.確定主報表中子報表的名稱與動態載入報表的名稱一樣
2.子報表載入資料的事件在載入子報表流的後面
3.報表要重新Reset並處理過Refresh
4.eg:
      void　BindReport()
      {
             //動態create報表
             CreatesubRdlc();

            ReportViewer1.Reset();
            StreamReader mainstream = new StreamReader(Server.MapPath("~/RdlcDoc/" + Request.QueryString["ReportName"].ToString() + ".rdlc"));
            ReportViewer1.LocalReport.LoadReportDefinition(mainstream );
            mainstream .Close();
            StreamReader substream = new StreamReader(Server.MapPath("~/RdlcDoc/" + prerpt + strMenuId + "CommRdlc.rdlc"));
            ReportViewer1.LocalReport.LoadSubreportDefinition("CommRdlc", substream);
            substream.Close();

            //加子報表事件
            ReportViewer1.LocalReport.SubreportProcessing += new SubreportProcessingEventHandler(SubreportProcessingEventHandler);

            //開發主報表
            ReportViewer1.LocalReport.DataSources.Clear();
           //載入主表資料
            DataTable dt = ((saveSession)Session["pintQryData"]).dtdata;
            ReportDataSource rds1 = new ReportDataSource("ReportDB", dt);
            ReportViewer1.LocalReport.DataSources.Add(rds1);
            //加參數
            ReportParameter[] inpara = ((saveSession)Session["pintQryData"]).rptParam;
            ReportViewer1.LocalReport.SetParameters(inpara);
            //refresh
            ReportViewer1.LocalReport.Refresh();
           //刪除臨時產生報表
            System.IO.File.Delete(Server.MapPath(prerpt + strMenuId + "CommRdlc.rdlc"));
    }
    /// <summary>
    /// 為子報表加資料來源
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
　　void　SubreportProcessingEventHandler(object　sender,　SubreportProcessingEventArgs　e)
      {
          DataTable dt = ((saveSession)Session["pintQryData"]).dtdata;
          ReportDataSource rds1 = new ReportDataSource("ReportDB", dt);
          e.DataSources.Add(rds1);
      }