[ASP.NET MVC] Edit資料時View PostBack到Action應該如何驗證資料模型繫結

如果使用 ModelState.IsValid ，假如我們有排除某些欄位時就會變得很麻煩， 故可以使用TryUpdateMode() 。

例如：

public ActionResult Image(string id)
        [HttpPost]
        [ValidateInput(false)] //避免Controller檢查Script攻擊
        public ActionResult EditBoardHonor([Bind(Exclude = "ValidDate,CreateDate")]Models.BoardHonor postback)
        {
            postback.CreateDate = DateTime.Now;
            postback.ValidDate = DateTime.Now;
            using (MvcBodyApp.Models.BodyDBEntities db = new BodyDBEntities())
            {
                var result = (from s in db.BoardHonor where s.BoardHonorId == postback.BoardHonorId select s).FirstOrDefault();
                if (TryUpdateModel(result)) //檢查資料繫結是否正常
                {
                    db.SaveChanges();
                    ViewData["resultMsg"] = String.Format("【{0}】編輯成功", postback.Title);
                    return View(postback);
                }
            }
            ViewData["resultMsg"] = "編輯失敗";
            return View(postback);
        }