如何覆盖mvc控制器中的操作？

How to override an action method in a controller? Can anyone explain with a small example. And one more thing to ask , can we do this without virtual keyword?

如何覆盖控制器中的操作方法?任何人都可以用一个小例子来解释。还有一件事要问,我们可以在没有虚拟关键字的情况下这样做吗?

1 个解决方案

#1

As far as i m understanding your question these are the answers :

至于我理解你的问题,这些是答案:

First Answer :

第一个答案:

it's not possible to have two controller actions with the same name but with a different result also:

不可能有两个具有相同名称但具有不同结果的控制器操作:

For example:

ActionResult YourAction() { ... }
FileContentResult YourAction() { ... }

In MVC you can also do this :

在MVC中你也可以这样做:

[HttpGet]
[ActionName("AnyAction")]
ActionResult YourAction(firstModel model1) { ... }

[HttpPost]
[ActionName("AnyAction")]
FileContentResult YourAction(secondModel model1) { ... }

The main idea here is that you can use the ActionNameAttribute to name several action methods with the same name.

这里的主要思想是您可以使用ActionNameAttribute来命名具有相同名称的多个操作方法。

----------------------------------------------------------------OR--------------------------------------------------------------

Second Answer :

第二个答案:

[NonAction]
public override ActionResult YourAction(FormCollection form)
{
  // do nothing or throw exception
}

[HttpPost]
public ActionResult YourAction(FormCollection form)
{
  // your implementation
}

#1