diff --git a/UniApiGroup/Controller/OdbcApiWmsController.cs b/UniApiGroup/Controller/OdbcApiWmsController.cs
index 4c96ff5..9052f99 100644
--- a/UniApiGroup/Controller/OdbcApiWmsController.cs
+++ b/UniApiGroup/Controller/OdbcApiWmsController.cs
@@ -375,7 +375,7 @@ string _recvQty = "SELECT   RecQty, AsnBillNum, PoLine, PartCode, PoBillNum,Batc
 
                             if (_first != null && _fs!=null)
                             {
-                                _first.Extend1 = (_fs.RecQty.Value + qadData.xxwms_rc_qty_total).ToString();
+                                _first.Extend1 = (_fs.RecQty!=null?_fs.RecQty.Value:0 + qadData.xxwms_rc_qty_total).ToString();
                                 wdb.TB_ASN_DETAIL.AddOrUpdate(_first);
                             }
                         }