blocks|key|3212174|text|这应该可以让您继续-它将呈现为<fb:name+uid="00101010101"/>。您还可以覆盖RenderBeginTag、RenderContents、RenderEndTag。根据您所做的工作，RenderControl中可能还会发生一些您需要的其他事情。你也可以考虑使用ControlAdapter，这可能会让你更好地分离控件功能和控件html编写。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3212175|public++class+FbName:System.Web.UI.WebControls.WebControl
{

++++protected+override+string+TagName
++++{
++++++++get
++++++++{
++++++++++++return+"fb:name";
++++++++}
++++}

++++public+override+void+RenderControl(HtmlTextWriter+writer)
++++{++
++++++++RenderBeginTag(writer);//+render+only+the+begin+tag.
++++++++//base.RenderContents(writer);
++++++++//base.RenderEndTag(writer);
++++}

++++public+override+void+RenderBeginTag(HtmlTextWriter+writer)
++++{
++++++++writer.Write("<"+%2B+this.TagName);
++++++++writer.WriteAttribute("uid",+"00101010101");
++++++++writer.Write("/>");

++++}
}|code-block|syntax|javascript|3212176|-Jason|3212177|entityMap^0|F|S|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

This should get you going - it will render as <code>&lt;fb:name uid="00101010101"/&gt;</code>. You could also override the RenderBeginTag, RenderContents, RenderEndTag. Depending on what you are doing there may be some other things going on in RenderControl that you need. You could also look into using a ControlAdapter, this may give you better separation of control functionality VS control html writing. 

<pre><code>public class FbName:System.Web.UI.WebControls.WebControl
{

 protected override string TagName
 {
 get
 {
 return "fb:name";
 }
 }

 public override void RenderControl(HtmlTextWriter writer)
 { 
 RenderBeginTag(writer);// render only the begin tag.
 //base.RenderContents(writer);
 //base.RenderEndTag(writer);
 }

 public override void RenderBeginTag(HtmlTextWriter writer)
 {
 writer.Write("&lt;" + this.TagName);
 writer.WriteAttribute("uid", "00101010101");
 writer.Write("/&gt;");

 }
}
</code></pre>

-Jason

blocks|key|864683|text|我建议使用HtmlTextWriter常量：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|864684|++++protected+override+void+Render(HtmlTextWriter+writer)
++++{
++++++++AddAttributesToRender(writer);
++++++++writer.Write(HtmlTextWriter.TagLeftChar);+//+'<'
++++++++writer.Write(this.TagName);
++++++++writer.Write(HtmlTextWriter.SpaceChar);+//+'+'
++++++++writer.WriteAttribute("uid",+"00101010101");
++++++++writer.Write(HtmlTextWriter.SpaceChar);+//+'+'
++++++++writer.Write(HtmlTextWriter.SelfClosingTagEnd);+//+"/>"
++++}|code-block|syntax|javascript|864685|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I'd recommend to use HtmlTextWriter constants:

<pre><code> protected override void Render(HtmlTextWriter writer)
 {
 AddAttributesToRender(writer);
 writer.Write(HtmlTextWriter.TagLeftChar); // '&lt;'
 writer.Write(this.TagName);
 writer.Write(HtmlTextWriter.SpaceChar); // ' '
 writer.WriteAttribute("uid", "00101010101");
 writer.Write(HtmlTextWriter.SpaceChar); // ' '
 writer.Write(HtmlTextWriter.SelfClosingTagEnd); // "/&gt;"
 }
</code></pre>

blocks|key|859413|text|由于这是搜索"HtmlTextWriter+self+closing+tag“时出现的第一个问题，所以这是给任何想要知道如何做的人准备的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|859414|writer.WriteBeginTag("tag");
writer.WriteAttribute("attribute",+"attribute+value");
//+...+add+other+attributes+here+...
writer.Write(HtmlTextWriter.SelfClosingTagEnd);|code-block|syntax|javascript|859415|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Since this is the top SO question that comes up when searching for "HtmlTextWriter self closing tag", this is for anyone coming here that wants to know how to do it:

<pre><code>writer.WriteBeginTag("tag");
writer.WriteAttribute("attribute", "attribute value");
// ... add other attributes here ...
writer.Write(HtmlTextWriter.SelfClosingTagEnd);
</code></pre>

blocks|key|864723|text|如果您使用Visual+studio，请执行以下步骤：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|864724|864725|工具->选项->文本编辑器->超文本标记语言->格式设置->删除自动插入关闭标记|blockquote|864726|864727|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|J|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|K|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|L|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|M|8|@]|9|@]|A|$]]]|H|$]]

if you use Visual studio go by these steps:

<blockquote>
 Tools ---> Options ---> Text Editor ---> HTML ----> Formatting --->
 remove Auto insert close tag
</blockquote>

I'm working on a Facebook FBML controls library and would like to create my FBML controls somewhat patterned like the ASP.NET WebControls library. I have a base class that handles rendering by default; here's my render method:

<pre><code>
 protected override void Render(HtmlTextWriter writer)
 {
 AddAttributesToRender(writer);

 if (UseXfbmlSemantics)
 {
 writer.RenderBeginTag(ElementName);
 writer.EndRender();
 writer.RenderEndTag();
 }
 else
 {
 writer.RenderBeginTag(ElementName);
 writer.RenderEndTag();
 }
 }
</code></pre>

What I would like is for the rendering to be modified based on UseXfbmlSemantics - if it's true, it should render, for instance:

<pre><code>&lt;fb:name uid="10300399458"&gt;&lt;/fb:name&gt;</code></pre>

When it's false, it should render with a self-closing tag:

<pre><code>&lt;fb:name uid="10300399458" /&gt;</code></pre>

I can get the "true" condition to work almost correctly, but the self-closing tag seems to be incompatible with the Render- set of methods. Unfortunately if that's the case it also means that the AddAttributesToRender pattern wouldn't work, either. What it's actually producing is this:

<pre><code>
 &lt;fb:name uid="10300399458"&gt;

 &lt;/fb:name&gt;
</code></pre>

How can I get HtmlTextWriter (or which HtmlTextWriter do I need to use) to make it render a self-closing tag? Or, at the very least, how can I make it not render that interim space (so that the opening and closing tags are immediately next to one another)?

Render Self-Closing Tag in ASP.NET custom control derived from Control

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在做一个Facebook的FBML控件库，我想创建我的FBML控件，有点像ASP.NET的WebControls库。我有一个默认处理渲染的基类；下面是我的render方法：        protected override void Render(HtmlTextWriter writer)        {  ...

问在从控件派生的ASP.NET自定义控件中呈现自关闭标记
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