public IEnumerable<THONG_TIN_TUYEN_SINH_LstNamTuyenSinhResult> THONG_TIN_TUYEN_SINH_LstNamTuyenSinh() { try { using (var db = new OOAD_EDUManagementDataContext()) { return db.THONG_TIN_TUYEN_SINH_LstNamTuyenSinh().ToList(); } } catch (Exception e) { return null; } }