public static void XoaDonDatHang(DDatHangDTO ddhDTO)
 {
     DDatHangDAO.XoaDonDatHang(ddhDTO);
 }
 public static DataTable LayChiTietHoaDon(DDatHangDTO ddhDTO)
 {
     return(DDatHangDAO.LayChiTietHoaDon(ddhDTO));
 }
 public static void SuaDonDatHang(DDatHangDTO ddhDTO)
 {
     DDatHangDAO.SuaDonDatHang(ddhDTO);
 }
 public static DataTable LayDanhSachDonDatHang()
 {
     return(DDatHangDAO.LayDanhSachDonDatHang());
 }
 public static void ThemChiTietHoaDon(DDatHangDTO ddhDTO)
 {
     DDatHangDAO.ThemChiTietHoaDon(ddhDTO);
 }
 public static string LayMaHoaDon()
 {
     return(DDatHangDAO.LayMaHoaDon());
 }
 public static bool ThemDonDatHang(DDatHangDTO ddhDTO)
 {
     return(DDatHangDAO.ThemDonDatHang(ddhDTO));
 }