我该如何重定向的ViewResult或ActionResult的函数内？ [英] How do I redirect within a ViewResult or ActionResult function?

问题描述

说我有：

public ViewResult List() 
{
    IEnumerable<IModel> myList = repository.GetMyList();
    if(1 == myList.Count())
    {
        RedirectToAction("Edit", new { id = myList.Single().id });
    }

    return View(myList);
}

在这个函数中，我检查是否有只有一个列表项，如果有，我想直接重定向到处理该列表项的控制，否则我想显示的列表视图。

Inside this function, I check if there is only one item in the list, if there is I'd like to redirect straight to the controller that handles the list item, otherwise I want to display the List View.

我如何做到这一点？只需添加 RedirectToAction 不起作用 - 呼叫被击中，但VS只有几步之遥了它，并试图在底部返回查看。

How do I do this? Simply adding a RedirectToAction doesn't work - the call is hit but VS just steps over it and tries to return the View at the bottom.

推荐答案

您需要返回RedirectToAction ，而不是只调用RedirectToAction方法。另外，你的方法就需要返回一个的ActionResult 是一个返回类型既兼容的ViewResult 和 RedirectToRouteResult 。

You need to return RedirectToAction instead of just calling the RedirectToAction method. Also, your method will need to return an ActionResult is a return type compatible with both ViewResult and RedirectToRouteResult.

public ActionResult List() 
{
    IEnumerable<IModel> myList = repository.GetMyList();
    if(1 == myList.Count())
    {
        return RedirectToAction("Edit", new { id = myList.Single().id });
    }

    return View(myList);
}

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