public IEnumerable<PHONG_SearchResult> PHONG_Search(PHONG_SearchResult data, int? top) { try { using (var db = new OOAD_EDUManagementDataContext()) { return db.PHONG_Search(data.maPhong, data.maXPhong, data.maHoiDongThi, data.tenPhong, data.sucChua, data.tinhTrang, 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; } }