public int hoadon_delete(string MaHD) { return(hddav.hoadon_delete(MaHD)); }
public int loaihang_delete(string MaHD) { return(hddal.hoadon_delete(MaHD)); }
public int hoadon_delete(string MaHD) { return(hddav.hoadon_delete(MaHD)); }
public int loaihang_delete(string MaHD) { return(hddal.hoadon_delete(MaHD)); }