crystal report subreport มันขึ้นว่า Not supported within subreports

                string strDateFrom = Session["DateFrom"].ToString();
                string strDateTo = Session["DateTo"].ToString();
                Session["DateFrom"] = null;
                Session["DateTo"] = null;

                DataSet ds = new DataSet();
                ds = ReportsBLL.Get_RptGoldViewInbound_DataList(strDateFrom, strDateTo, "");

                DataSet ds1 = new DataSet();
                ds1 = ReportsBLL.Get_RptGoldView_DataList(strDateFrom, strDateTo, "");

                UserData user = LogOnBiz.GetUserData();

                ReportDocument rpt = new ReportDocument();
                rpt.Load(Server.MapPath(@"Rpt023ViewBalanceGoldInboundHistory.rpt").ToString());
                rpt.SetDataSource(ds);
                rpt.SetParameterValue("userNameTH", user.DisplayNameTH);
                rpt.OpenSubreport("Rpt022ViewBalanceStockGoldHistory.rpt").SetDataSource(ds1);
                rpt.Subreports[0].SetParameterValue("userNameTH", user.DisplayNameTH);