public IEnumerable<TINH_TP_SearchResult> TINH_TP_Search(TINH_TP_SearchResult data, int? top) { try { using (var db = new OOAD_EDUManagementDataContext()) { return db.TINH_TP_Search(data.maTinh_TP, data.maXTinh_TP, data.tenTinh_TP, data.maNguoiLap, data.thoiGianLap == null ? "" : data.thoiGianLap.Value.ToString(Constants.FormatDate), data.maNguoiDuyet, data.thoiGianDuyet == null ? "" : data.thoiGianDuyet.Value.ToString(Constants.FormatDate), data.maTrangThaiDuyet, data.trangThaiDuLieu, top).ToList(); } } catch (Exception e) { return null; } }