public IEnumerable<TL_SYS_ROLE_SearchResult> TL_SYS_ROLE_Search(TL_SYS_ROLE_SearchResult data, int? top) { try { using (var db = new OOAD_EDUManagementDataContext()) { return db.TL_SYS_ROLE_Search(data.roleID, data.roleDesc, top).ToList(); } } catch (Exception e) { return new List<TL_SYS_ROLE_SearchResult>(); } }