diff --git a/B3ClientService/BO/Bill/GradeAndWeight/GradeAndWeight_Detail.cs b/B3ClientService/BO/Bill/GradeAndWeight/GradeAndWeight_Detail.cs
index dff5178..2193401 100644
--- a/B3ClientService/BO/Bill/GradeAndWeight/GradeAndWeight_Detail.cs
+++ b/B3ClientService/BO/Bill/GradeAndWeight/GradeAndWeight_Detail.cs
@@ -27,5 +27,8 @@ namespace BWP.B3ClientService.BO
     public decimal? Weight { get; set; }
 
     public DateTime Time { get; set; }
+
+    [NonDmoProperty]
+    public bool IsDeleted { get; set; }
   }
 }
diff --git a/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs b/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
index 7da64c6..610ae14 100644
--- a/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
+++ b/B3ClientService/Rpcs/BillRpc/GradeAndWeightRpc.cs
@@ -64,11 +64,55 @@ namespace BWP.B3ClientService.Rpcs.BillRpc
       return serializer.Serialize(list);
     }
 
+
+     static long DeleteDetail(GradeAndWeight_Detail entity)
+    {
+      using (var session = Dmo.NewSession())
+      {
+        if(entity.ID>0)
+        {
+          session.Delete(new DmoIdentity(typeof(GradeAndWeight_Detail), entity.ID));
+          if (entity.OrderDetail_ID.HasValue)
+          {
+            SubAlready(session, entity.OrderDetail_ID.Value, entity.Technics);
+          }
+        }
+        session.Commit();
+        return entity.ID;
+      }
+    }
+
+    static void SubAlready(IDmoSession session, long orderDetailID, short technics)
+    {
+      var entity = GetRelate(orderDetailID, technics);
+      if (entity != null)
+      {
+        entity.Already -= 1;
+        session.Update(entity);
+      }
+     
+    }
+
+
+
     [Rpc]
-    public static long UpdateOrInsertDetail(string json)
+    public static long UpdateOrInsertDetailOrDelete(string json)
     {
       json = json.ESerializeDateTime();
       var entity = serializer.Deserialize<GradeAndWeight_Detail>(json);
+      if (entity.IsDeleted)
+      {
+        return DeleteDetail(entity);
+      }
+      else
+      {
+        return UpdateOrInsertDetail(entity);
+      }
+    }
+
+
+     static long UpdateOrInsertDetail(GradeAndWeight_Detail entity)
+    {
       using (var session = Dmo.NewSession())
       {
         if (entity.ID == 0)