如何获得自定义编辑模板模型的字段名 [英] How to get model's field name in custom editor template
问题描述
我建设我的第一个自定义编辑模板的文本区域控制。我的code到目前为止 -
<%@控制语言=C#继承=System.Web.Mvc.ViewUserControl<动态>中%GT;
<%= Html.TextAreaFor(型号=>产品型号,2,30,
新{@class =HTML,@placeholder = ViewData.ModelMetadata.Watermark})%GT;
这不是太大,到目前为止,但它确实工作。但是,我们需要增加一个字符计数器字段,以显示剩余用户可以键入的字符数。我知道该怎么做的所有的JavaScript,使这项工作。
所以要保持命名系统一样,我要添加一个名为.charCounter显示左剩余的字符数控制。我的问题是,我无法找出正确的语法能够为模型检索字段名。
的最终版本将看起来像(JavaScript的省略) -
<%@控制语言=C#继承=System.Web.Mvc.ViewUserControl<动态>中%GT;
<%= Html.TextAreaFor(型号=>产品型号,2,30,
新{@class =HTML,@placeholder = ViewData.ModelMetadata.Watermark})%GT;
<跨度类=XXX>其余字符 -
<输入只读类型=文本名称=<&fieldName的GT; .charCounter/>
< / SPAN>
您可以使用 ViewData.TemplateInfo.HtmlField preFIX
,就像这样:
<输入
只读=只读
TYPE =文本
NAME =<%= ViewData.TemplateInfo.HtmlField preFIX%GT; .charCounter
/>
I'm building my first custom editor template for a text area control. My code so far is -
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<dynamic>" %>
<%= Html.TextAreaFor( Model => Model , 2, 30,
new { @class = "html", @placeholder = ViewData.ModelMetadata.Watermark }) %>
It's not much so far, but it does work. But we need to add a character counter field to show remaining number of characters that the user can type in. I know how to do all the JavaScript to make this work.
So to keep naming system same, I'm going to add a control named ".charCounter" to display number of remaining characters left. My problem is that I cannot figure out the correct syntax to be able to retrieve the field name for the model.
The final version will look something like (JavaScript omitted) -
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<dynamic>" %>
<%= Html.TextAreaFor( Model => Model , 2, 30,
new { @class = "html", @placeholder = ViewData.ModelMetadata.Watermark }) %>
<span class="xxx">Remaining characters -
<input readonly type="text" name="<fieldName>.charCounter" />
</span>
You could use ViewData.TemplateInfo.HtmlFieldPrefix
, like this:
<input
readonly="readonly"
type="text"
name="<%= ViewData.TemplateInfo.HtmlFieldPrefix %>.charCounter"
/>
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