public DataTable TinhDoanhThu()
{
DAO_HoaDon dao = new DAO_HoaDon();
return(dao.TinhDoanhThu());
}
public DataTable LoadDSHD(bool TrangThai)
{
DAO_HoaDon daoHD = new DAO_HoaDon();
return(daoHD.LoadDSHD(TrangThai));
}
public HoaDon LayThongTinHD(int MaHD)
{
DAO_HoaDon dao = new DAO_HoaDon();
return(dao.LayThongTinHD(MaHD));
}
public void ThemHD(HoaDon hd)
{
DAO_HoaDon daoHD = new DAO_HoaDon();
daoHD.ThemHD(hd);
}