＆是什么LT;％：％GT;在ASP.NET（MVC2）呢？ [英] What does <%: %> do in ASP.NET (MVC2)?

问题描述

一个同事最近在变更检查，其中许多形式和LT上的前pressions的;（％）=（...）％>被更改为＆lt;％：（......）％>

A coworker recently checked in a changeset where lots of expressions on the form <%= (...) %> were changed to <%: (...) %>.

我在聆听℃的模糊的记忆;％：的确，但不记得了。这太深夜打电话给我的同事，而谷歌和Bing都似乎无法搜索字符串＆LT;％：

I have a vague recollection of having heard what <%: does, but cannot remember. It's too late in the night to call my coworker, and Google and Bing both seem unable to search for the string "<%:".

有人可以告诉我，好吗？

Can someone enlighten me, please?

推荐答案

据HtmlEn codeS字符串，如果它已不是EN codeD。

It HtmlEncodes the string, if it hasn't already been encoded.

在已不是EN codeD部分就是MvcHtmlString进行了介绍。 MVC2回报许多的HtmlHelper方法MvcHtmlString重新不应重新连接codeD present字符串。
在＆lt;％：％>明白不要再带code

The "hasn't already been encoded part" is why MvcHtmlString was introduced. MVC2 returns MvcHtmlString from many HtmlHelper methods to represent strings that should not be re-encoded. The <%: %> knows not to re-encode.

请参阅http://stackoverflow.com/questions/2293357/what-is-an-mvchtmlstring-and-when-should-i-use-it一个良好的讨论。

See http://stackoverflow.com/questions/2293357/what-is-an-mvchtmlstring-and-when-should-i-use-it for a good discussion.

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