public void RemoveUserFromScheduleItem(ScheduleItemAddress scheduleItemAddress, Guid userID) { var scheduleItem = GetScheduleItem(scheduleItemAddress); repository.RemoveUserRelationship(scheduleItem.ToScheduleItemSmall(), userID); //cache.InvalidateItem(scheduleItem); //cache.Invalidate(string.Format("GetScheduleItemsByUser-UserID:{0}", userID)); }