public List <Diem_DTO> danhSachDiemHV()
{
Diem_DAO dDao = new Diem_DAO();
return(dDao.LoadDiemHV());
}
public List <Diem_DTO> danhSachDiemHV(string malop)
{
Diem_DAO dDao = new Diem_DAO();
return(dDao.LoadDiemHV(malop));
}