public TL_SYS_ROLE_DelResult TL_SYS_ROLE_Del(string roleID) { try { using (var db = new OOAD_EDUManagementDataContext()) { return db.TL_SYS_ROLE_Del(roleID).FirstOrDefault(); } } catch (Exception e) { return new TL_SYS_ROLE_DelResult() { RESULT = "-1", ERRORDESC = e.Message }; } }