public HDTC_DAO() { db = new QLTinhCuocDT2Entities(); }
public KhachHangDAO() { db = new QLTinhCuocDT2Entities(); }
public Import_logDAL() { db = new QLTinhCuocDT2Entities(); }
public ThongTinSIMDAO() { db = new QLTinhCuocDT2Entities(); }
public ChiTietSuDungDAO() { db = new QLTinhCuocDT2Entities(); }