从另一个控制器查看到字符串 [英] View to String from another controller

问题描述

我已经按照Vdex的建议完成了: https://stackoverflow.com/a/5801502/973485 并使用了他发现的RenderPartialToString方法.它像这样完美地工作:

i have done as Vdex suggested here: https://stackoverflow.com/a/5801502/973485 And used the RenderPartialToString method he found. And it works perfectly like this:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }
    public ActionResult Test()
    {
        string t = ViewToString.RenderPartialToString("Index", null, ControllerContext);
        return Content(t);
    }
}

但是，如果我想从另一个Controller渲染Home> Index，我会得到:

But if i want to render the Home > Index from another Controller, i get:

Value cannot be null.
Parameter name: controllerContext

赞:

public class FooController : Controller
{
    public ActionResult Index()
    {
        string t = ViewToString.RenderPartialToString("Index", null, new HomeController().ControllerContext);
        return Content(t);
    }
}

有什么方法可以将View从另一个Controller传递给字符串吗?我尝试了许多不同的方法，但所有这些方法在ControllerContext上都失败了.非常感谢！

Is there any way to pass a View from another Controller to a string? I have tried many different methods, and it all of them fails at the ControllerContext. Many thanks!

更新:为什么我需要这样做:

想象一下，我的网站充满了小部件，每个页面上的小部件数量是动态的，因此我无法将其硬编码到我的cshtml文件中.但是在该文件中，定义了不同的区域，在这些区域中小部件被打印输出.要打印出这些小部件，我有一个IWidgetController列表，其中包含所有可用的小部件，并且接口表示它们需要包含ActionResult才能进行编辑，新建和查看.小部件示例:CalenderController，NewsController，GalleryController等...因此，在这些区域中，我需要打印出每个Controller的内容.现在我还可以加载URLHTML，但是我认为从内部执行操作会更快...对吧?

Imagine i have a website full of widgets, the amount of widgets on each page is dynamic, so i cannot hardcode them in my cshtml file. But in that file there are different areas defined where the widgets gets printet out. To print out these widget i have a list of IWidgetController wich contains alle the different Widgets available, and the interface sais that they need to containe a ActionResult for edit, new and view. example of widgets: CalenderController, NewsController, GalleryController and so on... So in those areas i need to print out the content of each of those Controllers. Now i could also load the URLHTML but i figured doing it from the inside would be faster... right?

推荐答案

尝试一下:

string t = ViewToString.RenderPartialToString("Index", null, this.ControllerContext);

无论如何，为什么需要转换为字符串?

Anyway, why do you need to convert to a string?

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