asp.net mvc的是会话可在任何时候控制施工过程中？ [英] asp.net mvc is Session available at any point during controller construction?

问题描述

我试图访​​问控制器的构造Session变量和ControllerContext似乎总是空。

i am trying to access Session variables in the constructor of a controller and ControllerContext it seems is always null.

当是最早的会话变量可用呢？

When is the earliest the session variables are available?

谢谢！

编辑：例如：

在一个控制器：

public HomeController()
    {
        MyClass test =   (MyClass)ControllerContext.HttpContext.Session["SessionClass"];
    //ControllerContext always null           
    }

在调试的时候，controllercontext始终为空。在他们的ActionResult重定向到该控制器的控制，我有：

when debugging, controllercontext is ALWAYS null. In the controller whose actionresult redirects to this controller, i have:

Session["SessionClass"] = class;

MyClass test = (MyClass )ControllerContext.HttpContext.Session["SessionClass"]; 
// this works fine! i can get varibale from session

return RedirectToAction("Index", "Home");

那么，在什么点ControllerContext实际设置？我什么时候可以访问会话变量？

So, at what point is ControllerContext actually set? When can I access session variables?

推荐答案

覆盖<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.mvc.controller.initialize.aspx\">Initialize():

protected override void Initialize(System.Web.Routing.RequestContext requestContext)
{
    base.Initialize(requestContext);
    requestContext.HttpContext.Session["blabla"] = "hello"; // do your stuff
}

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