生成的HTML帮助URL [英] Generate URL in HTML helper

问题描述

通常在ASP.NET视图人们可以使用下面的函数来获取URL（不是＆LT; A＆GT; ）

Normally in an ASP.NET view one could use the following function to obtain a URL (not an <a>):

Url.Action("Action", "Controller");

不过，我找不到如何从一个自定义的HTML帮助做到这一点。我有

However, I cannot find how to do it from a custom HTML helper. I have

public class MyCustomHelper
{
   public static string ExtensionMethod(this HtmlHelper helper)
   {
   }
}

助手变量的作用和GenerateLink方法，但它们产生＆LT; A＆GT; 的。我做了一些挖了ASP.NET MVC源$ C ​​$ C，但我无法找到一个简单的方法。

The helper variable has the Action and GenerateLink methods, but they generate <a>’s. I did some digging in the ASP.NET MVC source code, but I could not find a straightforward way.

问题是，上面的链接视图类的成员，并为其实例化它需要一些背景和路线图（我不希望被处理，我不应该这样）。另外，HtmlHelper类的实例也有一些情况下，我认为是的URL实例的上下文信息子集的任一夜宵（而我又不想用它处理）。

The problem is that the Url above is a member of the view class and for its instantiation it needs some contexts and route maps (which I don’t want to be dealing with and I’m not supposed to anyway). Alternatively, the instance of the HtmlHelper class has also some context which I assume is either supper of subset of the context information of the Url instance (but again I don’t want to dealing with it).

综上所述，我认为这是可能的，但因为我可以看到所有的方式，涉及到一些处理一些或多或少的内部ASP.NET的东西，我不知道是否有更好的办法。

In summary, I think it is possible but since all ways I could see, involve some manipulation with some more or less internal ASP.NET stuff, I wonder whether there is a better way.

编辑：举例来说，一种可能性我看应该是：

For instance, one possibility I see would be:

public class MyCustomHelper
{
    public static string ExtensionMethod(this HtmlHelper helper)
    {
        UrlHelper urlHelper = new UrlHelper(helper.ViewContext.RequestContext);
        urlHelper.Action("Action", "Controller");
    }
}

但它似乎并不正确。我不希望被处理UrlHelper自己的实例。必须有一个更简单的方法。

But it does not seem right. I don't want to be dealing with instances of UrlHelper myself. There must be an easier way.

推荐答案

您可以创建网址助手像这里面的HTML帮助扩展方法：

You can create url helper like this inside html helper extension method:

var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext);
var url = urlHelper.Action("Home", "Index")

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