//xoa
public static bool XoaNhomHang(string ma)
{
return(DL_NhomHang.NhomHangXoa(ma));
}
//them nhom hang
public static bool ThemNhomHang(string ma, string ten)
{
return(DL_NhomHang.NhomHangThem(ma, ten));
}
//sua nhom hang
public static bool SuaNhomHang(string ma, string ten)
{
return(DL_NhomHang.NhomHangSua(ma, ten));
}
//lay data kho
public static DataTable LayDuLieunNhomHang()
{
return(DL_NhomHang.DuLieuKhoHang());
}
