blocks|key|533399|text|默认情况下，您只能使用ControllerContext.Controller访问控制器内部的当前Controller，或者使用ViewContext.Context访问视图内部的当前a。要从某个类访问它，您需要实现一个自定义ControllerFactory，它将控制器实例存储在某个位置并从那里检索它。例如在Request.Items中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|533400|public+class+MyControllerFactory+:+DefaultControllerFactory
{
++++public+override+IController+CreateController(RequestContext+requestContext,+string+controllerName)
++++{
++++++++var+controller+=+base.CreateController(requestContext,+controllerName);
++++++++HttpContext.Current.Items["controllerInstance"]+=+controller;
++++++++return+controller;
++++}
}|code-block|syntax|javascript|533401|然后在您的Application_Start中注册它|533402|ControllerBuilder.Current.SetControllerFactory(new+MyControllerFactory());|533403|您可以稍后获取控制器实例：|533404|public+class+SomeClass
{
++++public+SomeClass()
++++{
++++++++var+controller+=+(IController)HttpContext.Current.Items["controllerInstance"];
++++}
}|533405|但我会找到另一种方法来将控制器实例传递给我的类，而不是这种“老生常谈”的解决办法。|533406|entityMap^0|B|S|1D|A|1S|J|35|H|4C|D|0|0|5|H|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1D|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1E|8|@]|D|@]|E|$]]|$1|U|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|V|$]]

By default you can only access the current <code>Controller</code> inside a controller with <code>ControllerContext.Controller</code> or inside a view with <code>ViewContext.Context</code>. To access it from some class you need to implement a custom <code>ControllerFactory</code> which stores the controller instance somewhere and retrieve it from there. E.g in the <code>Request.Items</code>:

<pre><code>public class MyControllerFactory : DefaultControllerFactory
{
 public override IController CreateController(RequestContext requestContext, string controllerName)
 {
 var controller = base.CreateController(requestContext, controllerName);
 HttpContext.Current.Items["controllerInstance"] = controller;
 return controller;
 }
}
</code></pre>

Then you register it in your <code>Application_Start</code>:

<pre><code>ControllerBuilder.Current.SetControllerFactory(new MyControllerFactory());
</code></pre>

And you can get the controller instance later:

<pre><code>public class SomeClass
{
 public SomeClass()
 {
 var controller = (IController)HttpContext.Current.Items["controllerInstance"];
 }
}
</code></pre>

But I would find some another way to pass the controller instance to my class instead of this "hacky" workaround.

blocks|key|749960|text|如果我的所作所为有损于整个Asp.Net页面的生命周期/无论什么，都会有人纠正我，但你肯定可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|749961|在控制器中|749962|ViewBag.CurrentController+=+this;|code-block|syntax|javascript|749963|在视图中|749964|var+c+=+ViewBag.CurrentController;
var+m1+=+BaseController.RenderViewToString(c,+"~/Views/Test/_Partial.cshtml",+null);|749965|在我的例子中，我有一个所有控制器都可以扩展的基本控制器。在基本控制器中有一个名为RenderViewToString的静态方法，它需要一个控制器。因为我认为我可以在这一点上为c实例化一个空控制器的新实例，所以我只是将它发送到Asp.Net+MVC世界中可爱的ViewBag容器中的视图。由于我现在无法进入的原因，我无法检索控制器中的字符串并将其发送回视图(这是我在需求更改之前所做的事情)。|749966|我之所以这样做，是因为在PHP和JS等其他语言中，也有类似的简单方法来传递类。|749967|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Someone will have to correct me if what I am doing is detrimental to the whole Asp.Net page life cycle / whatever but surely you can do this:

In controller

<pre><code>ViewBag.CurrentController = this;
</code></pre>

In view

<pre><code>var c = ViewBag.CurrentController;
var m1 = BaseController.RenderViewToString(c, "~/Views/Test/_Partial.cshtml", null);
</code></pre>

In my case, I had a base controller that all controllers extend. In that base controller lived a static method called RenderViewToString and it required a controller. Since I figured I could just instantiate a new instance of an empty controller at this point for c, I just sent it to the view in the lovely ViewBag container that exists in the world of Asp.Net MVC. For reasons I could not go into now, I could not retrieve the string in the controller and send just that back to the view (this was what I had done earlier before requirements changed).

The reason I have done it this way is in other languages like PHP and JS, there are similar simple ways to transfer classes around.

I know how to get the current controller name

<pre><code>HttpContext.Current.Request.RequestContext.RouteData.Values["controller"].ToString();
</code></pre>

But is there any way to get the current controller instance in some class (not in an action and not in a view)?

Asp.net mvc 3- get the current controller instance (not just name)

容器

我知道如何获取当前控制器的名称HttpContext.Current.Request.RequestContext.RouteData.Values["controller"].ToString();但是，有没有办法在某个类中(而不是在操作和视图中)获取当前的控制器实例？

问Asp.net MVC3-获取当前控制器实例(不仅仅是名称)
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