如何获取页面的ASP.NET MVC操作（即来自URL的操作）而不是当前操作？

Given the following simplified ASP.NET MVC scenario:

鉴于以下简化的ASP.NET MVC场景：

A user navigates to a page http://www.mysite.com/Home/Index ("Index" explictly included for clarity)
用户导航到页面http://www.mysite.com/Home/Index(为清晰起见，明确包括“索引”）
On that page is a $.ajax({..}) jQuery post that calls a method within Home controller, e.g. /Home/GetProducts
在该页面上是一个$ .ajax（{..}）jQuery帖子，它调用Home控制器中的方法，例如/主页/的GetProducts
In the GetProducts() method I need to get the Index action name - bear in mind that at runtime I don't know whether the user is browsing Home/Index, Home/About, Home/Contact, etc., as GetProducts could be called from anywhere.
在GetProducts（）方法中，我需要获取Index操作名称 - 请记住，在运行时我不知道用户是否正在浏览Home / Index，Home / About，Home / Contact等，因为GetProducts可能是从任何地方打来

I can't for the life of me get the page action (e.g. Index, About, Contact, etc.) in the scope of the GetProducts() method.

我不能为我的生活获取GetProducts（）方法范围内的页面操作（例如索引，关于，联系等）。

I have tried the following:

我尝试过以下方法：

// returns "GetProducts"
string actionName1 = RouteData.GetRequiredString("action");
// returns "GetProducts"
string actionName2 = ControllerContext.Controller.ValueProvider.GetValue("action").RawValue.ToString();
// ParentActionViewContext == null
string actionName3 = ControllerContext.ParentActionViewContext.RouteData.Values["action"].ToString();

1 个解决方案

#1

You can't get it. HTTP is a stateless protocol which doesn't keep any track of previous requests. So simply pass it as parameter to the AJAX request:

你无法得到它。 HTTP是一种无状态协议，它不会跟踪先前的请求。因此，只需将其作为参数传递给AJAX请求：

$.ajax({
    url: '@Url.Action("GetProducts", "Home")',
    data: { currentAction: '@ViewContext.RouteData.GetRequiredString("action")' },
    success: function(result) {
        // do something with the results
    }
});

and your GetProducts controller action will take it as parameter:

并且您的GetProducts控制器操作将把它作为参数：

public ActionResult GetProducts(string currentAction)
{
    ...
}

#1