如何让 Html.DisplayFor 显示换行符? [英] How to make Html.DisplayFor display line breaks?

问题描述

令人尴尬的新手问题:

我的模型中有一个包含换行符的 string 字段.

I have a string field in my model that contains line breaks.

@Html.DisplayFor(x => x.MultiLineText)

不显示换行符.

显然我可以在模型中做一些摆弄并创建另一个字段，将 替换为 <br/>，但这看起来很笨拙.使这项工作正常进行的教科书方式是什么?

Obviously I could do some fiddling in the model and create another field that replaces with <br/>, but that seems kludgy. What's the textbook way to make this work?

推荐答案

一个用换行符显示字符串值的 HtmlHelper 扩展方法:

A HtmlHelper extension method to display string values with line breaks:

public static MvcHtmlString DisplayWithBreaksFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
{
    var metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData);
    var model = html.Encode(metadata.Model).Replace("
", "<br />
");

    if (String.IsNullOrEmpty(model))
        return MvcHtmlString.Empty;

    return MvcHtmlString.Create(model);
}

然后您可以使用以下语法:

And then you can use the following syntax:

@Html.DisplayWithBreaksFor(m => m.MultiLineField)

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