在EditorTemplate渲染的字段名称（通过EditorFor呈现（）） [英] Rendering the field name in an EditorTemplate (rendered through EditorFor())

问题描述

我目前正在建设管理后端在ASP.NET MVC网站。

I'm currently building the Admin back-end for a website in ASP.NET MVC.

在ASP.NET MVC应用程序中，我使用'EditorFor辅助方法，像这样开始：

In an ASP.NET MVC application, I've started using the 'EditorFor' helper method like so:

<div id="content-edit" class="data-form">
    <p>
        <%= Html.LabelFor(c => c.Title) %>
        <%= Html.TextBoxFor(c => c.Title)%>
    </p>
    <p>
        <%= Html.LabelFor(c => c.Biography) %>
        <%= Html.EditorFor(c => c. Biography)%>
    </p>
</div>

在该模型中，传现场已被装饰：[UIHelper（HTML）]

In the model, the 'Biography' field has been decorated with: [UIHelper("Html")].

我有一个'HTML'的局部视图（下查看/共享/ EditorTemplates）：

I have an 'Html' partial view (under Views/Shared/EditorTemplates):

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.XML.Linq.XElement>" %>

<textarea class="html">
    <%= Model.ToString() %>
</textarea>

现在我想有设置为字段的名称文本区域'的'ID'属性，像这样：

Now I'd like to have the 'ID' attribute of the 'textarea' set to the name of the field, like this:

<textarea id="Biography" class="html">
    ...
</textarea>

但我不能看到一个办法做到这一点与当前设置。

But I can't see a way to do that with the current set up.

所有我能想到的是创建一个包含值属性和控件ID属性的HTML视图模型。

All I can think of is creating an 'Html' ViewModel that contains a 'Value' property and a 'ControlID' property.

但是，如果我基于的视图关闭该，而不是'System.XML.Linq.XElement'，这将不再是与EditorFor'helper方法兼容，我不得不手工做的一切。

But if I based the view off that, rather than 'System.XML.Linq.XElement', it would no longer be compatible with the 'EditorFor' helper method and I'd have to do everything manually.

有没有人遇到过类似问题吗？

Has anyone had a similar problem yet?

推荐答案

您应该能够从视图的ViewData.TemplateInfo.HtmlField preFIX财产拉出所需的ID。像这样的：

You should be able to pull out the desired ID from the ViewData.TemplateInfo.HtmlFieldPrefix property of the view. Like this:

<%@ Control Language="C#"
      Inherits="System.Web.Mvc.ViewUserControl<System.XML.Linq.XElement>" %>
<textarea id="<%= ViewData.TemplateInfo.HtmlFieldPrefix %>" class="html">
    <%= Model.ToString() %>
</textarea>

要说明为什么这个作品，这里是在TemplateHelpers.cs的地方ViewData的是一种编辑模板控件初始化（MVC2 preVIEW 1源）：

To show why this works, here's the place in TemplateHelpers.cs (of MVC2 Preview 1 source) where ViewData is initialized for the Editor template control:

ViewDataDictionary viewData = new ViewDataDictionary(html.ViewDataContainer.ViewData) {
    Model = modelValue,
    TemplateInfo = new TemplateInfo {
        FormattedModelValue = formattedModelValue,
        ModelType = modelType,
        HtmlFieldPrefix = html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldId(expression),
        IsNullableValueType = (underlyingNullableType != null),
    }
};

在上面的电话，前pression被初始化（进一步调用堆栈）与属性的名称进行编辑。

In the call above, "expression" is initialized (further up the call stack) with the name of the property being edited.

顺便说一句，下面@Sperling抓住一个细节我原来错过了：如果你使用（或可能使用）一​​个非默认的 HtmlHelper.IdAttributeDotReplacement ，那么你会想与 HtmlHelper.IdAttributeDotReplacement 来替换 HTML preFIX 属性点。

BTW, @Sperling below caught a detail I originally missed: if you're using (or might use) a non-default HtmlHelper.IdAttributeDotReplacement, then you'll want to replace the dots in the HtmlPrefix property with HtmlHelper.IdAttributeDotReplacement.

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