public IHttpActionResult GetId(int MaSanPham)
{
SanPham_BUS bus = new SanPham_BUS();
if (bus.HienThiSanPhamTheoID(MaSanPham) == null)
{
return(NotFound());
}
return(Ok(bus.HienThiSanPhamTheoID(MaSanPham)));
}