diff --git a/BO/Utils/BillRpc/GradeAndWeightRpc.cs b/BO/Utils/BillRpc/GradeAndWeightRpc.cs
index 09cc292..15c971b 100644
--- a/BO/Utils/BillRpc/GradeAndWeightRpc.cs
+++ b/BO/Utils/BillRpc/GradeAndWeightRpc.cs
@@ -237,6 +237,7 @@ namespace BO.Utils.BillRpc
         var delete = new DQDeleteDom(typeof(GradeAndWeight_Detail));
         delete.Where.Conditions.Add(DQCondition.And(DQCondition.EQ("IsDeleted", true), DQCondition.EQ("ID", 0)));
         session.ExecuteNonQuery(delete);
+        session.Commit();
       }
     }
 
@@ -247,6 +248,7 @@ namespace BO.Utils.BillRpc
         var delete = new DQDeleteDom(typeof(GradeAndWeight_Detail));
         delete.Where.Conditions.Add(DQCondition.EQ("SID", sid));
         session.ExecuteNonQuery(delete);
+        session.Commit();
       }
     }
 
diff --git a/WeighAndGrading/GradeFrom.cs b/WeighAndGrading/GradeFrom.cs
index eb9ac35..e1bd5eb 100644
--- a/WeighAndGrading/GradeFrom.cs
+++ b/WeighAndGrading/GradeFrom.cs
@@ -550,17 +550,17 @@ namespace WeighAndGrading
           row.DefaultCellStyle.BackColor = Color.Red;
       }
       InitScrollBar2();
-      if (lastSelectID.HasValue)
-      {
-        foreach (DataGridViewRow row in historyGrid.Rows)
-        {
-          if ((long)row.Cells["H_SID"].Value == lastSelectID)
-          {
-            historyGrid.CurrentCell = row.Cells[row.Cells.Count - 1];
-            break;
-          }
-        }
-      }
+      //if (lastSelectID.HasValue)
+      //{
+      //  foreach (DataGridViewRow row in historyGrid.Rows)
+      //  {
+      //    if ((long)row.Cells["H_SID"].Value == lastSelectID)
+      //    {
+      //      historyGrid.CurrentCell = row.Cells[row.Cells.Count - 1];
+      //      break;
+      //    }
+      //  }
+      //}
       try
       {
         if (rightRoll != -1)
@@ -1465,13 +1465,13 @@ namespace WeighAndGrading
     private long? maxLockID;
 
     GradeAndWeight_Detail lastCheckItem, mCurrentSlectItem;
-    long? lastSelectID = null;
+    //long? lastSelectID = null;
     private void historyGrid_CellClick(object sender, DataGridViewCellEventArgs e)
     {
       if (e.RowIndex < 0)
         return;
       var currentRow = historyGrid.CurrentRow.DataBoundItem as GradeAndWeight_Detail;
-      lastSelectID = currentRow.SID;
+     // lastSelectID = currentRow.SID;
 
       mCurrentSlectItem = currentRow;