在控制器上下文可用之前查找请求是否是子操作请求

Question

在一个简单的mvc 4应用程序中,我安装了Ninject.MVC3 nuget包.

这是我的控制器,非常基本,ISomeClass由ninject注入构造函数中.

public class HomeController : Controller
{
    private readonly ISomeClass _someClass;

    public HomeController(ISomeClass someclass)
    {
        _someClass = someclass;
    }

    public ActionResult Index()
    {
        return View();
    }

    [ChildActionOnly]
    public PartialViewResult MiniView()
    {
        return PartialView("miniview", _someClass.GetName());
    }
}

这是SomeClass

public class SomeClass : ISomeClass
{
    private readonly string _someName;

    public SomeClass(string someName)
    {
        _someName = someName;
    }

    public string GetName()
    {
        return _someName;
    }
}

在Index.cshtml视图中我有

@{ Html.RenderAction("MiniView","Home"); }

现在在NinjectWebCommon中,当我去注册服务时,我需要知道请求是否是子动作请求.就像我打电话一样Html.RenderAction.这是我正在尝试但它不起作用.

kernel.Bind<ISomeClass>().To<SomeClass>()
      .WithConstructorArgument("someName", c => IsChildAction(c) ? "Child" : "Nope");

IsChildAction方法 - 始终返回false.

private static bool IsChildAction(Ninject.Activation.IContext c)
{
   var handler = HttpContext.Current.Handler;

   /*Cant do this, ChildActionMvcHandler is internal*/        
   return handler is System.Web.Mvc.Html.ChildActionExtensions.ChildActionMvcHandler;

//OR

   //This is how ControllerContext.IsChildAction gets its value in System.Web.Mvc but      
   //RouteData.DataTokens is empty for me       
   return ((MvcHandler)handler).RequestContext.RouteData.DataTokens
                              .ContainsKey("ParentActionViewContext");
}  

任何想法,如果可以做到这一点？

ps:这不是实际的代码,只是尝试一些东西.这是我应该肯定不会做的事情吗？为什么？

Answer 1

我最后检查当前请求是否有前一个处理程序.似乎它只是针对儿童行为设置的.

HttpContext.Current.PreviousHandler != null && 
HttpContext.Current.PreviousHandler is MvcHandler;