ASP.NET MVC更新数据的问题

C# code

        public ActionResult Demo()        {            NorthwindEntity entity = new NorthwindEntity();            IQueryable<Products> pro = from s in entity.Products                                       where s.ProductID == 1                                       select s;            return View(pro);        }                //为什么用这个方法不能更新实体类库里的Products数据呢，请问哪里出错啊，请大牛帮忙，谢谢！        public ActionResult UpdateDemo(Products pd)        {            NorthwindEntity entity = new NorthwindEntity();            Products model = entity.Products.FirstOrDefault(e => e.ProductID == pd.ProductID);            UpdateModel(model, pd.ProductName);            entity.SaveChanges();            return RedirectToAction("Demo");        }

[解决办法]
[AcceptVerbs(HttpVerbs.Post)]//增加这句看看
public ActionResult UpdateDemo(Products pd)
{
NorthwindEntity entity = new NorthwindEntity();
Products model = entity.Products.FirstOrDefault(e => e.ProductID == pd.ProductID);
UpdateModel(model, pd.ProductName);
entity.SaveChanges();
return RedirectToAction("Demo");
}

[解决办法]
帮顶