diff --git a/24Hour/Controllers/Common/LawyerservicesController.cs b/24Hour/Controllers/Common/LawyerservicesController.cs
index 61af5ec..f1a2126 100644
--- a/24Hour/Controllers/Common/LawyerservicesController.cs
+++ b/24Hour/Controllers/Common/LawyerservicesController.cs
@@ -82,11 +82,11 @@ namespace _24Hour.Controllers.Common
             RefAsync<int> totalNumber = 0;//总数据
             //查询律师服务
             var list = await _db.Queryable<App_LawyerServicesModel>()
-                .WhereIF(Lawyerdata.name != null, q => q.name.Contains(Lawyerdata.name))
-                .WhereIF(Lawyerdata.objectstr != null, q => q.objectstr.Contains(Lawyerdata.objectstr))
-                .WhereIF(Lawyerdata.unitId != null, q => q.unitCode.Contains(Lawyerdata.unitId))
-                .WhereIF(Lawyerdata.state != null, q => q.state == Lawyerdata.state)
-                .WhereIF(Lawyerdata.StartTime != null && Lawyerdata.EndTime != null, q => q.receptiontime >= Lawyerdata.StartTime && q.receptiontime < Lawyerdata.EndTime.Value.AddDays(1))
+                .WhereIF(Lawyerdata?.name != null, q => q.name.Contains(Lawyerdata.name))
+                .WhereIF(Lawyerdata?.objectstr != null, q => q.objectstr.Contains(Lawyerdata.objectstr))
+                .WhereIF(Lawyerdata?.unitId != null, q => q.unitCode.Contains(Lawyerdata.unitId))
+                .WhereIF(Lawyerdata?.state != null, q => q.state == Lawyerdata.state)
+                .WhereIF(Lawyerdata?.StartTime != null && Lawyerdata.EndTime != null, q => q.receptiontime >= Lawyerdata.StartTime && q.receptiontime < Lawyerdata.EndTime.Value.AddDays(1))
                 .Where(q => q.IsDeleted == 0 && q.unitCode == _userdata.unitCode).ToPageListAsync(Lawyerdata.PageIndex, Lawyerdata.PageSize, totalNumber);
             Lawyerdata.RowsCount = totalNumber;
             var data = new QueryResult<App_LawyerServicesModel>(Lawyerdata, list.OrderByDescending(q => q.creationtime).ToList());