有个能会报错

B3ClientService/Rpcs/BillRpc/HouseAndSanctionRpc.cs

@@ -241,10 +241,11 @@ namespace BWP.B3ClientService.Rpcs.BillRpc
       var query = new DQueryDom(new JoinAlias(typeof(HurryRecord)));
       query.Columns.Add(DQSelectColumn.Sum("HurryNumber"));
       query.Where.Conditions.Add(DQCondition.And(DQCondition.EQ("WeightBill_ID", wid), DQCondition.IsNull(DQExpression.Field("ToOrderDetail_ID"))));
-      var rst = query.EExecuteScalar(session);
-      if (rst != null)
-        return Convert.ToInt32(rst);
-      return 0;
+      var rst = query.EExecuteScalar<int?>(session);
+      return rst??0;
+//      if (rst != null)
+//        return Convert.ToInt32(rst);
+//      return 0;
     }
 
     static List<T> GetList<T>(long billID)