Asp.net MVC 3获得当前控制器实例（不仅仅是名称） [英] Asp.net mvc 3- get the current controller instance (not just name)

问题描述

我知道如何让当前的控制器名

I know how to get the current controller name

HttpContext.Current.Request.RequestContext.RouteData.Values["controller"].ToString();

但是，有没有什么办法让电流控制器的实例在某些类（而不是在一个动作，而不是在一个视图）？

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

推荐答案

在默认情况下，你只能访问当前的控制器与 ControllerContext控制器内.Controller 或 ViewContext.Context 视图中。从某些类，你需要实现一个自定义的访问的ControllerFactory 其中某处存储控制器实例中的请求例如在会话。

By default you can only access the current Controller inside a controller with ControllerContext.Controller or inside a view with ViewContext.Context. To access it from some class you need to implement a custom ControllerFactory which stores the controller instance somewhere in the Request e.g. in the session.

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

然后在它注册你的的Application_Start ：

ControllerBuilder.Current.SetControllerFactory(new MyControllerFactory());

和以后可以得到控制器实例：

And you can get the controller instance later:

public class SomeClass
{
    public SomeClass()
    {
        var controller = (IController)HttpContext.Current.Session["controllerInstance"];
    }
}

不过，我会找到一些另一种方式来控制器实例传递给我的课，而不是这个哈克的解决方法。

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

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