private void DataGrid1_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
 {
     if (e.CommandName == "Add")
     {
         try
         {
             if (Session["ProductList"] == null)
             {
                 Popup("请选择产品");
                 return;
             }
             DataTable dtDetail = (DataTable)Session["ProductList"];
             if (dtDetail.Rows.Count == 0)
             {
                 Popup("请选择订单里面没有的产品");
                 return;
             }
             OrderFacade order            = new OrderFacade();
             string      strOrderSerialNo = txtOrderSerialNo.Text;
             OperLog     operLog          = new OperLog();
             operLog.cnvcOperID   = oper.strLoginID;
             operLog.cnvcDeptID   = oper.strDeptID;
             operLog.cnvcOperType = "订单加产品";
             order.AddDetail(strOrderSerialNo, operLog, dtDetail);
             Session["ProductList"]    = null;
             this.DataGrid1.DataSource = null;
             this.DataGrid1.DataBind();
             BindDetail(strOrderSerialNo);
             Popup("订单中加入产品成功");
         }
         catch (Exception ex)
         {
             Popup(ex.Message);
         }
     }
 }