asp.net-mvc 如何在 Asp.Net MVC 循环中呈现纯 HTML 链接？
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How to render plain HTML links in Asp.Net MVC loop?
提问by Joannes Vermorel
I would like to render a list of HTML links in ASP.NET MVC. Note that the links are absolute and externalto the website being designed. The following code works:
我想在 ASP.NET MVC 中呈现 HTML 链接列表。请注意，链接是绝对和外部正在设计的网站。以下代码有效：
<% foreach (var item in Model) { %>
<tr>
<td>
<%= Html.Encode(item.Id) %>
</td>
<td>
<%= String.Format("<a href=\"{0}\">link</a>", item.Url) %>
</td>
</tr>
<% } %>
But I am wondering if it's really the right approach. Am I missing some obvious MVC control here?
但我想知道这是否真的是正确的方法。我在这里错过了一些明显的 MVC 控制吗？
采纳答案by Misha N.
You are not missing anything but good approach is to create extender method on HtmlHelper:
您没有遗漏任何东西，但好的方法是在 HtmlHelper 上创建扩展程序方法：
public static class HtmlHelpers
{
public static string SimpleLink(this HtmlHelper html, string url, string text)
{
return String.Format("<a href=\"{0}\">{1}</a>", url, text);
}
}
then you can use it like this:
那么你可以像这样使用它：
<tr>
<td>
<%= Html.Encode(item.Id) %>
</td>
<td>
<%= Html.SimpleLink(item.Url,item.Text) %>
</td>
</tr>
[edit] I forgot to add. In order to use this HtmlHelper extender throughout application you need to add the following in the web config file:
[编辑] 我忘了补充。为了在整个应用程序中使用此 HtmlHelper 扩展程序，您需要在 Web 配置文件中添加以下内容：
<system.web>
<pages>
<namespaces>
<!-- leave rest as-is -->
<add namespace="theNamespaceWhereHtmlHelpersClassIs"/>
</namespaces>
</pages>
</system.web>
回答by Glenn Slaven
I like to implement it the way the MVC framework does it, using the tag builder class. This way I can pass through the htmlAttributesparameter to add things like class or other attributes:
我喜欢用 MVC 框架的方式来实现它，使用标签构建器类。这样我就可以通过htmlAttributes参数来添加类或其他属性之类的东西：
public static MvcHtmlString HtmlLink(this HtmlHelper html, string url, string text, object htmlAttributes)
{
TagBuilder tb = new TagBuilder("a");
tb.InnerHtml = text;
tb.MergeAttributes(new RouteValueDictionary(htmlAttributes));
tb.MergeAttribute("href", url);
return MvcHtmlString.Create(tb.ToString(TagRenderMode.Normal));
}
May seem like overkill just to generate a link, but it means you don't have to muck about with string format patterns to insert additional HTML attributes on the link
仅仅生成一个链接似乎有点矫枉过正，但这意味着您不必考虑字符串格式模式来在链接上插入额外的 HTML 属性
回答by Max
I would rather use
我宁愿使用
<td><a href="<%= item.Url %>">link</a></td>
seems somewhat "cleaner" to me, but I think your approach just as good.
对我来说似乎有些“更干净”，但我认为你的方法同样好。
回答by Edward Wilde
Orchard project has an HtmlHelper extensions class which has a link builder method.
Orchard 项目有一个 HtmlHelper 扩展类，它有一个链接构建器方法。
See: HtmlHelperExtensions.Link()
请参阅：HtmlHelperExtensions.Link()
Allows the following usage:
允许以下用法：
<li>@Html.Link(Model.Path, Model.Title)</li>
UpdateThe above link is no longer valid, but if you download the source, you will find HtmlHelperExtensions which has 5 overloads for Links, one of which looks like this:
更新上面的链接不再有效，但是如果您下载源代码，您会发现 HtmlHelperExtensions 有 5 个链接重载，其中之一如下所示：
public static IHtmlString Link(this HtmlHelper htmlHelper, string linkContents, string href, IDictionary<string, object> htmlAttributes) {
var tagBuilder = new TagBuilder("a") { InnerHtml = htmlHelper.Encode(linkContents) };
tagBuilder.MergeAttributes(htmlAttributes);
tagBuilder.MergeAttribute("href", href);
return new HtmlString(tagBuilder.ToString(TagRenderMode.Normal));
}
回答by Mehdi Golchin
I think it's good. A simple foreach does the repeater role in MVC.
我认为这很好。一个简单的 foreach 在 MVC 中扮演中继器的角色。
回答by Pravin Patil
To avoid Html encoding use @Html.Raw(url).
为避免 Html 编码，请使用 @Html.Raw(url)。
