public static bool XoaSP(string tensp)
{
if (!DAO_Sanpham.KTspTonTai(tensp))
{
return(false);
}
else
{
return(DAO_Sanpham.Xoasp(tensp));
}
}
public static bool Suasp(DTO_Sanpham sp)
{
if (!DAO_Sanpham.KTspTonTai(sp.Tensp))
{
return(false);
}
else
{
return(DAO_Sanpham.Suasp(sp));
}
}
public static DTO_Sanpham LayThongTinsp(string tensp)
{
if (!DAO_Sanpham.KTspTonTai(tensp))
{
return(null);
}
else
{
return(DAO_Sanpham.laythongtinsanpham(tensp));
}
}
public static List <DTO_Sanpham> timkiemSP(string tensp)
{
return(DAO_Sanpham.TimkiemSP(tensp));
}
public static List <DTO_Sanpham> LayDSsp(string malsp)
{
return(DAO_Sanpham.LayDSTSanpham(malsp));
}
public static List <DTO_Sanpham> LayDSsp()
{
return(DAO_Sanpham.LayDSTSanpham());
}
