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	<title>中文Flex例子 &#187; getItemAt</title>
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		<title>Flex中如何用getItemAt事件和数组访问操作符[]从ArrayCollection中获取数据显示的例子</title>
		<link>http://blog.minidx.com/2008/05/11/840.html</link>
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		<pubDate>Sun, 11 May 2008 10:35:54 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[ArrayCollection]]></category>
		<category><![CDATA[getItemAt]]></category>
		<category><![CDATA[操作符]]></category>
		<category><![CDATA[数组]]></category>

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		<description><![CDATA[对于ArrayCollection，我们也不陌生，Flex中如何重新设置DataGrid控件的排序的例子等几个例子中都用到了ArrayCollection类。接下来的例子演示了如何用getItemAt事件和数组访问操作符[]从ArrayCollection中获取特定数据并显示。
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;middle&#34;
&#160; &#160; &#160; &#160; backgroundColor=&#34;white&#34;&#62;
&#160;
&#160; &#160; &#60;mx:ArrayCollection&#160;id=&#34;arrColl&#34;&#62;
&#160; &#160; &#160; &#160; &#60;mx:source&#62;
&#160; &#160; &#160; &#160; &#160; &#160; &#60;mx:Array&#62;
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#60;mx:Object&#160;label=&#34;Student A&#34; score=&#34;85&#34; /&#62;
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#60;mx:Object&#160;label=&#34;Student B&#34; score=&#34;48&#34; /&#62;
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