diff --git a/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs b/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
index b244630..0351af0 100644
--- a/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
+++ b/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
@@ -1,5 +1,6 @@
 using BWP.B3ClientService.BO;
 using BWP.B3ClientService.RpcBO;
+using BWP.B3Frameworks.Utils;
 using Forks.EnterpriseServices.DomainObjects2;
 using Forks.EnterpriseServices.DomainObjects2.DQuery;
 using Forks.EnterpriseServices.JsonRpc;
@@ -64,7 +65,6 @@ namespace BWP.B3ClientService.Rpcs.BillRpc
       return serializer.Serialize(list);
     }
 
-
      static long DeleteDetail(GradeAndWeight_Detail entity)
     {
       using (var session = Dmo.NewSession())
@@ -122,7 +122,20 @@ namespace BWP.B3ClientService.Rpcs.BillRpc
             AddAlready(session, entity.OrderDetail_ID.Value, entity.Technics);
         }
         else
+        {
+          if (entity.OrderDetail_ID.HasValue)
+          {
+            var old = InnerBLUtil.GetDmoPropertyByID<short>(session, typeof(GradeAndWeight_Detail), "Technics", entity.ID);
+            if (old != entity.Technics)
+            {
+              AddAlready(session, entity.OrderDetail_ID.Value, entity.Technics);
+              SubAlready(session, entity.OrderDetail_ID.Value, old);
+            }
+          }
+
           session.Update(entity);
+
+        }
         session.Commit();
         return entity.ID;
       }