相对客户端URL到http url

时间:2010-09-28 20:35:41

标签: asp.net-mvc relative-path

我有一个模型类的属性,它包含文件的相对URL。

~/_docs/folder/folder/document.pdf

如何在视图中将其转换为超链接以下载文件本身?

感谢

1 个答案:

答案 0 :(得分:3)

<a href="<%= Url.Content("~/_docs/folder/folder/document.pdf") %>">
    document.pdf
</a>

或者为了使这更优雅并避免意大利面条代码,你可以写一个自定义的HTML帮助器:

public static class HtmlExtensions
{
    public static MvcHtmlString ContentLink(
        this HtmlHelper htmlHelper, 
        string linkText, 
        string contentPath, 
        object htmlAttributes
    )
    {
        var a = new TagBuilder("a");
        var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext, htmlHelper.RouteCollection);
        a.MergeAttribute("href", urlHelper.Content(contentPath));
        a.MergeAttributes(new RouteValueDictionary(htmlAttributes));
        a.SetInnerText(linkText);
        return MvcHtmlString.Create(a.ToString());
    }
}

然后:

<%= Html.ContentLink(
    "download.pdf", 
    "~/_docs/folder/folder/document.pdf", 
    new { title = "Download download.pdf" }
) %>