如何保持ASP.NET TextBox从HTML编码其内容？ [英] How do I keep an ASP.NET TextBox from HTML-encoding its content?

问题描述

问题是我在FormView中有一个ASP.NET TextBox，其Text属性绑定到数据库表字段。在某些情况下，可能有HTML代码与数据库中的正常文本相结合。 RequestEncoding和ResponseEncoding设置为iso-8859-1（whitch为latin1）。有一些字段可以组合latin1字符和西里尔字符。这在输入西里尔字符（例如д）时没有问题。因为RequestEncoding设置为iso-8859-1和浏览器的字符集，浏览器将更改为&＃1076;，将保存在数据库中。这是我想要的，但因为&＃1076;将转换为& amp;＃1076;当将响应输出发送到浏览器之前设置为ASP.NET TextBox的Text属性时，我会看到&＃1076;

the "problem" is that I do have an ASP.NET TextBox in a FormView with its Text property bound to a database table field. In some cases, there might be HTML-code combined with normal text in the database. The RequestEncoding and ResponseEncoding is set to "iso-8859-1" (whitch is latin1). There are some fields where latin1-characters and cyrillic characters may be combined. This is no problem when typing in cyrillic characters (e.g "д"). Because the RequestEncoding is set to iso-8859-1 and the charset for the browser as well, the browser will change д to "д", which will be saved in the database. That's what I want, but because "д" will be converted to "д" when set to an ASP.NET TextBox's Text-property before the response output is sent to the browser, I do see "д" after saving the data.

任何人都可以告诉我如何停止ASP.NET的转换。

Can anybody tell me how to stop ASP.NET from that conversion?

：在所有控件都呈现之后，是否有办法改变ASPX网站的完整输出？ - 我可以用&＃替换& amp;＃。

ALternatively: Is there a way to alter the conplete output of an ASPX site after all controls have ben rendered? - I could than replace "&#" by "&#".

推荐答案

我解决了我的问题显示我的方式）：

I solved my problem (PortageMonkey showed me the way):

首先我创建了一个类IsoTextBox，它继承自System.Web.UI.WebControls.TextBox。因为Text属性总是返回一个非编码字符串，所以简单地改变Text属性属性没有做这个工作。我改写了Render方法：

First I created a class "IsoTextBox" which inherits from System.Web.UI.WebControls.TextBox. Because the Text property does always returns a non-encoded string, simply changing the Text properties attribute did not do the job. Instead I overrote the Render method:

protected override void Render(HtmlTextWriter writer)
{
    StringWriter stringWriter = new StringWriter();
    HtmlTextWriter source = new HtmlTextWriter(stringWriter);
    base.Render(source);
    writer.Write(stringWriter.ToString().Replace("&#", "&#"));
}

并且在web.config中添加了tagMapping：

And than added the tagMapping in the web.config:

<system.web>
      <pages>
        <tagMapping>
         <add mappedTagType="MyNamespace.IsoTextBox" tagType="System.Web.UI.WebControls.TextBox"/>
        </tagMapping>
      </pages>
      <globalization requestEncoding="iso-8859-1" responseEncoding="iso-8859-1"/>
</system.web>

这效果很好！

这篇关于如何保持ASP.NET TextBox从HTML编码其内容？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！