diff --git a/B3SheepButcherManage/BL/Bill/StatPayBL/StatPayBL.cs b/B3SheepButcherManage/BL/Bill/StatPayBL/StatPayBL.cs
index 25d8246..83a3316 100644
--- a/B3SheepButcherManage/BL/Bill/StatPayBL/StatPayBL.cs
+++ b/B3SheepButcherManage/BL/Bill/StatPayBL/StatPayBL.cs
@@ -310,6 +310,8 @@ namespace BWP.B3SheepButcherManage.BL
       var 过磅单已结算 = Get过磅单已结算(dmo.ID, dmo.WeightBill_ID);
       var 已结算过磅单头数 = 过磅单已结算.Item1;
       var 已结算过磅单重量 = Math.Round((decimal)过磅单已结算.Item2, 2);
+      if (dmo.WeighBill_BuyNum == null || dmo.WeighBill_BuyWeigh1 == null)
+        DmoUtil.RefreshDependency(dmo, "WeightBill_ID");
       if (总头数 + 已结算过磅单头数 > (dmo.WeighBill_BuyNum ?? 0))
       {
         throw new Exception("已结算头数:" + 已结算过磅单头数 + " 本次结算头数:" + 总头数 + "不能大于 过磅单：" + dmo.WeightBill_ID + " 总收购头数:" + dmo.WeighBill_BuyNum);