public ActionResult Detail(string shortname)
{
var pro = sachService.GetByShortName(shortname);
ViewBag.ListImages = sachService.GetById(pro.MaSanPham);
var listTacGia = sachService.GetNameTacgia(pro.MaSanPham);
ViewBag.ListTacGia = listTacGia;
ViewBag.ListOrther = sachService.GetOrther(pro);
return(View(pro));
}