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	<title>中文Flex例子 &#187; prompt</title>
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	<description>中文Adobe Flex例子,Flex实例教程,RIA资源,全文检索技术,算法和数据结构</description>
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		<title>Flex中如何通过自定义label函数对ComboBox的标签（Label）进行格式化的例子</title>
		<link>http://blog.minidx.com/2008/10/02/1453.html</link>
		<comments>http://blog.minidx.com/2008/10/02/1453.html#comments</comments>
		<pubDate>Wed, 01 Oct 2008 23:31:50 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[ComboBox]]></category>
		<category><![CDATA[Label]]></category>
		<category><![CDATA[labelFunction]]></category>
		<category><![CDATA[prompt]]></category>
		<category><![CDATA[substitute]]></category>
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		<description><![CDATA[接下来的例子演示了Flex中如何通过自定义label函数，对ComboBox的标签（Label）进行格式化。
让我们先来看一下Demo（可以右键View Source或点击这里察看源代码）：









下面是完整代码(或点击这里察看)：
Download: main.mxml&#60;?xml version=&#34;1.0&#34; encoding=&#34;utf-8&#34;?&#62;
&#60;mx:Application&#160;xmlns:mx=&#34;http://www.adobe.com/2006/mxml&#34;
&#160; &#160; &#160; &#160; layout=&#34;vertical&#34;
&#160; &#160; &#160; &#160; verticalAlign=&#34;middle&#34;
&#160; &#160; &#160; &#160; backgroundColor=&#34;white&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Script&#62;
&#160; &#160; &#160; &#160; &#60;![CDATA[
&#160; &#160; &#160; &#160; &#160; &#160; import mx.utils.StringUtil;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function comboBox_labelFunc(item:Object):String {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; return StringUtil.substitute(&#34;{0} ({1})&#34;, item.@name, item.@abbrev);
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		<title>Flex中如何通过prompt属性在ComboBox控件中添加一个提示项(prompt)的例子</title>
		<link>http://blog.minidx.com/2008/06/05/885.html</link>
		<comments>http://blog.minidx.com/2008/06/05/885.html#comments</comments>
		<pubDate>Thu, 05 Jun 2008 13:40:06 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[ComboBox]]></category>
		<category><![CDATA[prompt]]></category>
		<category><![CDATA[selectedIndex]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/2008/06/05/885.html</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何通过prompt属性，在ComboBox控件中添加一个提示项(prompt)。例子中你可以通过点击&#8220;Reset ComboBox&#8221;按钮(将selectedIndex设为-1)来初始化ComboBox。
我们先来看一下Demo（可以右键View Source或点击这里察看源代码）：









下面是完整代码(或点击这里查看)：
Download: main.mxml&#60;?xml version=&#34;1.0&#34; encoding=&#34;utf-8&#34;?&#62;
&#60;mx:Application&#160;xmlns:mx=&#34;http://www.adobe.com/2006/mxml&#34;
&#160; &#160; &#160; &#160; layout=&#34;vertical&#34;
&#160; &#160; &#160; &#160; verticalAlign=&#34;top&#34;
&#160; &#160; &#160; &#160; backgroundColor=&#34;white&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Array&#160;id=&#34;arr&#34;&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;AL&#34; name=&#34;Alabama&#34; /&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;AK&#34; name=&#34;Alaska&#34; /&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;AZ&#34; name=&#34;Arizona&#34; /&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;AR&#34; name=&#34;Arkansas&#34; /&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;CA&#34; name=&#34;California&#34; /&#62;
&#160; &#160; &#160; &#160; &#60;mx:Object&#160;abbrev=&#34;CO&#34; name=&#34;Colorado&#34; [...]]]></description>
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