public ItemGioHang(string maSP, int soLuongSP)
{
using (CarShopEntities db = new CarShopEntities())
{
this.MaSP = maSP;
SanPham sp = db.SanPhams.Single(x => x.MaSP == maSP);
this.TenSP = sp.TenSP;
this.DonGia = sp.DonGia.Value;
this.URLAnh = sp.URLAnh;
this.SoLuong = soLuongSP;
this.ThanhTien = this.SoLuong * this.DonGia;
}
}