使用的FormCollection当MVC 3 RTM allowHtml不起作用

本文介绍了使用的FormCollection当MVC 3 RTM allowHtml不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

MVC 3 RTM。有一个与AllowHtml属性的模型。在我的控制器动作，如果行动的FormCollection作为参数，它会抛出异常：

  [HttpPost]
 公众的ActionResult编辑（的FormCollection收集，INT ID）
 {
   变种myEntity所= _myRepo.Get（ID）;   TryUpdateModel（myEntity所）;   返回DoSave就会（myEntity所）;
 }

However if my controller action uses an object instead of FormCollection it doesn't throw the exception.

 [HttpPost]
 public ActionResult Edit(MyEntity postedEntity, int id)
 {
   var myEntity = _myRepo.Get(id);

   TryUpdateModel(myEntity);

   return DoSave(myEntity);
 }

I've already setup

Why does it fail when using FormCollection?

解决方案

You can't use AllowHtml with FormCollection. You could use the [ValidateInput] attribute but obviously this disabled validation for all values:

[HttpPost]
[ValidateInput(false)]
public ActionResult Edit(FormCollection collection, int id)
{
    var myEntity = _myRepo.Get(id);
    TryUpdateModel(objective);
    return DoSave(objective);
}

This being said I would use the following:

[HttpPost]
public ActionResult Edit(MyEntity entity)
{
    if (ModelState.IsValid)
    {
        _myRepo.Save(entity);
        return RedirectToAction("Success");
    }
    return View(entity);
}

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