新增用户的粘贴数据添加“未找到分配医院”的错误信息

performance/Performance.Services/UserService.cs

@@ -782,6 +782,9 @@ public string SaveUserHandsFlat(UserCollectData request)
                 {
                     if (item == null) return "必填项为空";
                     var HospitalId = hospitals.FirstOrDefault(w => w.HosName == item)?.ID;
+
+                    if (HospitalId == null) return "未找到分配医院";
+
                     var allot = _perallotRepository.GetEntities(t => t.HospitalId == HospitalId);
                     var accountingUnits = accounts?.Join(allot, t => t.AllotId, w => w.ID, (t, w) => t.AccountingUnit).Distinct().ToList();
                     res.Add(item, accountingUnits);