如何ViewBag数据后，表单POST得救？ [英] How can ViewBag data be saved after a form post?

问题描述

所以我有一个 ViewBag.Something 并随机生成该数据。在我看来，我设置为一个标签像这样 @ Html.LabelFor（M = GT; m.Something，（串）ViewBag.Something）。这个工程搞好，但是当我提交表单可能有错误，如果有错误，我需要这个标签保持不变，我不想动态/随机数据了，所以我不认为这是发生在控制器方法这ViewBag。有没有办法留住这个值，而不必在我的控制器中的一些私有变量？这MVC /剃刀做它的一些好办法？

So I have a ViewBag.Something and this data is randomly generated. In my view, I set this to a label like so @Html.LabelFor(m => m.Something, (string)ViewBag.Something). This works out well but when I submit the form there could be errors and if there are errors, I need this label to remain the same, I don't want dynamic/random data anymore so I wouldn't call the controller method that generated this ViewBag. Is there a way to retain this value without having some private variable in my controller? Some nice way that MVC/Razor does it?

推荐答案

在弄，建立一个模型，将它设置动态当返回查看（）是正在执行中，执行返回查看（模型）。然后在视图中建立一个隐藏字段，可以继续传递所需的价值。我选择了走这条路，因为我不担心任何服务器code键使一个帖子这项工作，我不担心任何会话。

In the get, set up a model, set it dynamically and when return view() is being executed, do return view(model). Then in the view, set up a hidden field that can keep on passing the value needed. I chose to go this route because I don't have to worry about any server code to make this work on a post and I don't have to worry about any sessions.

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