做ASP.NET MVC的辅助方法，如Html.DropDownList（）带code输出HTML？ [英] Do ASP.NET MVC helper methods like Html.DropDownList() encode the output HTML?

问题描述

我只是想知道，如果我担心编码，当我使用HTML佣工像 Html.DropDownList（）。

I am just wondering if I have to worry about encoding the values that get output when I use HTML helpers like Html.DropDownList().

如果是这样，我怎么带code呢？这很容易做到，如果我手动降低建筑下降 - 只是包装，每个值 Html.En code（）。但是，我不知道如何使用HTML佣工时，要做到这一点。

If so, how do I encode them? It's easy to do if I were building the drop down manually -- just wrap each value with "Html.Encode()". However, I don't know how to do this when using HTML helpers.

推荐答案

它看起来像值均设有codeD自动，所以没有理由去自己做。下面是从实际的ASP.NET MVC 1.0源$ C ​​$ C片段，您可以从codePLEX（以SelectExtensions.cs）下载：

It looks like the values are encoded automatically, so there's no reason to do it yourself. Here's a snippet from the actual ASP.NET MVC 1.0 source code that you can download from codeplex (in SelectExtensions.cs):

    private static string ListItemToOption(SelectListItem item) {
        TagBuilder builder = new TagBuilder("option") {
            InnerHtml = HttpUtility.HtmlEncode(item.Text)
        };
        if (item.Value != null) {
            builder.Attributes["value"] = item.Value;
        }
        if (item.Selected) {
            builder.Attributes["selected"] = "selected";
        }
        return builder.ToString(TagRenderMode.Normal);
    }

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