public ViewResult ChiTietSach(int masach = 0)
{
Sach sach = sachDAO.ChiTietSach(masach);
if (sach == null)
{
Response.StatusCode = 404;
return(null);
}
var chude = sach.MaChuDe;
if (sach.SoLuong == 0)
{
ViewBag.Soluong = "Hết Hàng";
}
else
{
ViewBag.Soluong2 = "Còn Hàng";
}
return(View(sach));
}