diff --git a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
index b5f22688..3dfa04c8 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
@@ -562,8 +562,7 @@ namespace Tnb.WarehouseMgr
                 if (curEleDs?.Count > 0)
                 {
                     //当前电梯
-                    var curEle = await _db.Queryable<WmsElevatorH>().SingleAsync(it => it.id == curEleDs.First().bill_id && it.status == 1);
-                    if(curEle == null) throw new AppFriendlyException("电梯被禁用",500);
+                    var curEle = await _db.Queryable<WmsElevatorH>().SingleAsync(it => it.id == curEleDs.First().bill_id && it.status == 1) ?? throw new AppFriendlyException("电梯被禁用", 500);
                     //同电梯组电梯
                     var sGpEle = await _db.Queryable<WmsElevatorH>().Where(it => it.elevator_group == curEle.elevator_group && it.id != curEle.id && it.status == 1).ToListAsync();
                     //判断电梯组中各电梯任务数