diff --git a/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs b/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
index fd1b63d..7b445d6 100644
--- a/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
+++ b/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
@@ -280,7 +280,7 @@ namespace Shentun.WebPeis.AppointSchedules
                     entList = entList.Where(m => m.AppointDate.Date >= DateTime.Parse(input.StartDate));
                 }
             }
-            var entListDto = entList.Select(s => new AppointScheduleDto
+            var entListDto = entList.ToList().Select(s => new AppointScheduleDto
             {
                 AppointDate = DataHelper.ConversionDateShortToString(s.AppointDate),
                 AppointScheduleId = s.AppointScheduleId,