public static List <Lop> GetListLop(string maNamHoc = null) { return(LopDAL.GetListLop(maNamHoc)); }
public static DataTable GetListLop() { return(LopDAL.GetListLop()); }
public static List <Lop> GetListLop(string maNamHoc, string maLoaiLop) { return(LopDAL.GetListLop(maNamHoc, maLoaiLop)); }