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	<title>中文Flex例子 &#187; ArrayCollection</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ArrayCollection对象的collectionChange事件，verticalScrollPosition以及maxVerticalScrollPosition属性创建一个自动滚动的DataGrid的例子</title>
		<link>http://blog.minidx.com/2009/07/01/2673.html</link>
		<comments>http://blog.minidx.com/2009/07/01/2673.html#comments</comments>
		<pubDate>Wed, 01 Jul 2009 00:21:14 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[DataGrid]]></category>
		<category><![CDATA[ArrayCollection]]></category>
		<category><![CDATA[collectionChange]]></category>
		<category><![CDATA[CollectionEvent]]></category>
		<category><![CDATA[maxVerticalScrollPosition]]></category>
		<category><![CDATA[validateNow()]]></category>
		<category><![CDATA[verticalScrollPosition]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/?p=2673</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何通过ArrayCollection对象的collectionChange事件，verticalScrollPosition以及maxVerticalScrollPosition属性创建一个自动滚动的DataGrid。
让我们先来看一下Demo（可以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;name=&#34;DataGrid_maxVerticalScrollPosition_text&#34;
&#160; &#160; &#160; &#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;
&#160; &#160; &#160; &#160; creationComplete=&#34;init();&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Script&#62;
&#160; &#160; &#160; &#160; &#60;![CDATA[
&#160; &#160; &#160; &#160; &#160; &#160; import mx.events.CollectionEvent;
&#160; &#160; &#160; &#160; &#160; &#160; private var timer:Timer;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function init():void {
&#160; &#160; [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Flex中如何自定义CheckBox作为List数据提供源的例子</title>
		<link>http://blog.minidx.com/2009/03/09/2266.html</link>
		<comments>http://blog.minidx.com/2009/03/09/2266.html#comments</comments>
		<pubDate>Mon, 09 Mar 2009 00:34:28 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[List]]></category>
		<category><![CDATA[ArrayCollection]]></category>
		<category><![CDATA[CheckBox]]></category>
		<category><![CDATA[collectionChange]]></category>
		<category><![CDATA[Component]]></category>
		<category><![CDATA[filter]]></category>
		<category><![CDATA[itemRenderer]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/?p=2266</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何自定义CheckBox作为List数据提供源。
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; xmlns:vo=&#34;*&#34;
&#160; &#160; &#160; &#160; layout=&#34;horizontal&#34;
&#160; &#160; &#160; &#160; verticalAlign=&#34;middle&#34;
&#160; &#160; &#160; &#160; backgroundColor=&#34;white&#34;
&#160; &#160; &#160; &#160; creationComplete=&#34;init();&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Script&#62;
&#160; &#160; &#160; &#160; &#60;![CDATA[
&#160; &#160; &#160; &#160; &#160; &#160; import mx.events.CollectionEvent;
&#160; &#160; &#160; &#160; &#160; &#160; import mx.utils.ObjectUtil;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function init():void {
&#160; &#160; [...]]]></description>
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		</item>
		<item>
		<title>Flex中如何通过监听collectionChange事件检测arraycollection是否改变了的例子</title>
		<link>http://blog.minidx.com/2008/05/15/850.html</link>
		<comments>http://blog.minidx.com/2008/05/15/850.html#comments</comments>
		<pubDate>Thu, 15 May 2008 12:59:12 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[ArrayCollection]]></category>
		<category><![CDATA[collectionChange]]></category>
		<category><![CDATA[PopUpButton]]></category>
		<category><![CDATA[refresh]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/2008/05/15/850.html</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何通过监听collectionChange事件检测ArrayCollection是否改变.这里所谓的改变，包括项目的追加，删除，以及刷新等操作。 
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:Script&#62;
&#160; &#160; &#160; &#160; &#60;![CDATA[
&#160; &#160; &#160; &#160; &#160; &#160; import mx.utils.ObjectUtil;
&#160; &#160; &#160; &#160; &#160; &#160; import mx.controls.dataGridClasses.DataGridColumn;
&#160; &#160; &#160; &#160; &#160; &#160; import mx.events.CollectionEvent;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function arrColl_collectionChange(evt:CollectionEvent):void {
&#160; &#160; [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<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>
		<comments>http://blog.minidx.com/2008/05/11/840.html#comments</comments>
		<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>

		<guid isPermaLink="false">http://blog.minidx.com/2008/05/11/840.html</guid>
		<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;
&#160; &#160; &#160; &#160; &#160; [...]]]></description>
		<wfw:commentRss>http://blog.minidx.com/2008/05/11/840.html/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Flex中如何在ArrayCollection创建一个可视化的游标(cursor)的例子</title>
		<link>http://blog.minidx.com/2008/04/16/723.html</link>
		<comments>http://blog.minidx.com/2008/04/16/723.html#comments</comments>
		<pubDate>Wed, 16 Apr 2008 13:16:14 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[ArrayCollection]]></category>
		<category><![CDATA[createCursor]]></category>
		<category><![CDATA[current]]></category>
		<category><![CDATA[findAny]]></category>
		<category><![CDATA[IViewCursor]]></category>
		<category><![CDATA[sort]]></category>
		<category><![CDATA[游标]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/2008/04/16/723.html</guid>
		<description><![CDATA[接下来的例子演示了如何在ArrayCollection中，创建一个可视化的游标(cursor)用来查找一个特别的项。 例子很简单，注意区分大小写。
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;
&#160; &#160; &#160; &#160; creationComplete=&#34;init();&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Array&#160;id=&#34;arr&#34;&#62;
&#160; &#160; &#160; &#160; &#60;mx:String&#62;One&#60;/mx:String&#62;
&#160; &#160; &#160; &#160; &#60;mx:String&#62;Two&#60;/mx:String&#62;
&#160; &#160; &#160; &#160; &#60;mx:String&#62;Three&#60;/mx:String&#62;
&#160; &#160; &#160; &#160; &#60;mx:String&#62;Four&#60;/mx:String&#62;
&#160; &#160; &#160; &#160; &#60;mx:String&#62;Five&#60;/mx:String&#62;
&#160; &#160; &#60;/mx:Array&#62;
&#160;
&#160; &#160; &#60;mx:ArrayCollection&#160;id=&#34;arrColl&#34; source=&#34;{arr}&#34; /&#62;
&#160;
&#160; &#160; &#60;mx:Script&#62;
&#160; &#160; &#160; &#160; [...]]]></description>
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