diff --git a/BO/Utils/BillRpc/GradeAndWeightRpc.cs b/BO/Utils/BillRpc/GradeAndWeightRpc.cs
index 568cf0c..03c867c 100644
--- a/BO/Utils/BillRpc/GradeAndWeightRpc.cs
+++ b/BO/Utils/BillRpc/GradeAndWeightRpc.cs
@@ -116,7 +116,7 @@ namespace BO.Utils.BillRpc
     {
       var query = new DQueryDom(new JoinAlias(typeof(OrderGradeFinishRelate)));
       query.Where.Conditions.Add(DQCondition.And(DQCondition.EQ("Order", order), DQCondition.EQ("Date", date), DQCondition.EQ("Technics", technics)));
-      query.Columns.Add(DQSelectColumn.Create(DQExpression.Field("1"), "c"));
+      query.Columns.Add(DQSelectColumn.Create(DQExpression.Value("1"), "c"));
       return session.ExecuteScalar(query) != null;
     }
 
diff --git a/WeighAndGrading/GradeFrom.cs b/WeighAndGrading/GradeFrom.cs
index 311f23a..82af2f3 100644
--- a/WeighAndGrading/GradeFrom.cs
+++ b/WeighAndGrading/GradeFrom.cs
@@ -872,7 +872,6 @@ namespace WeighAndGrading
         {
           ResetQueue();
         }
-        BindDetailGrid();
         modifyDetail = null;
         modifyPanel.Hide();
       }