Asp.Net MVC 5如何发送到ViewBag管窥 [英] Asp.Net MVC 5 How to send ViewBag to Partial View

问题描述

我有一个_LoginPartial查看并希望通过ViewBag将数据发送到它，但我'发送数据的控制器，没有一个视图。

I have a _LoginPartial View and want to send data to it by ViewBag, but the Controller that I'am sending data from, doesn't have a View.

public PartialViewResult Index()
    {
        ViewBag.sth = // some data
        return PartialView("~/Views/Shared/_LoginPartial.cshtml");
    }

这code并没有为我工作。

This code didn't work for me.

推荐答案

看来你希望当你被称为该首页的行动： @ Html.Partial（'_ LoginPartial'）。这将永远不会发生。 部分只是贯穿剃刀的当前视图的上下文的局部视图，并吐出生成的HTML。

It seems you're expecting this Index action to be called when you do: @Html.Partial('_LoginPartial'). That will never happen. Partial just runs the partial view through Razor with the current view's context and spits out the generated HTML.

如果您需要更多的信息，你的部分，你可以指定一个自定义的的ViewDataDictionary ：

If you need additional information for your partial, you can specify a custom ViewDataDictionary:

@Html.Partial("_LoginPartial", new ViewDataDictionary { Foo = "Bar" });

您可以在里面部分通过然后访问：

Which you can then access inside the partial via:

ViewData["Foo"]

您还可以使用儿童的行动，这是一般preferable如果有不需要的主视图背景下的局部视图工作。 _LoginPartial 似乎是一个不错的选择，虽然我不知道你使用它究竟如何。讽刺的是，虽然，配备了带个人身份验证默认MVC项目的 _LoginPartial 视图使用儿童的行动。

You can also use child actions, which is generally preferable if working with a partial view that doesn't need the context of the main view. _LoginPartial seems like a good candidate, although I'm not sure how exactly you're using it. Ironically, though, the _LoginPartial view that comes with a default MVC project with individual auth uses child actions.

基本上，code你应该已经工作，你只需要改变的 Html.Action 而不是<$ C $您如何使用引用它C> Html.Partial ：

Basically, the code you have would already work, you would just need to change how you reference it by using Html.Action instead of Html.Partial:

@Html.Action("Index")

这是我们在调用的动作的通知在这里，现在的看法。

Notice that you're calling the action here and now the view.

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