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	<title>中文Flex例子 &#187; dataDescriptor</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中如何利用dataDescriptor属性和isToggled()函数判断PopUpButton的下拉选项是否选中的例子</title>
		<link>http://blog.minidx.com/2009/03/31/2328.html</link>
		<comments>http://blog.minidx.com/2009/03/31/2328.html#comments</comments>
		<pubDate>Tue, 31 Mar 2009 00:12:14 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[PopUpButton]]></category>
		<category><![CDATA[dataDescriptor]]></category>
		<category><![CDATA[getType()]]></category>
		<category><![CDATA[isToggled()]]></category>
		<category><![CDATA[Menu]]></category>

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		<description><![CDATA[接下来的例子演示了Flex中如何利用dataDescriptor属性和isToggled()函数，判断PopUpButton的下拉选项是否选中。
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;top&#34;
&#160; &#160; &#160; &#160; backgroundColor=&#34;white&#34;&#62;
&#160;
&#160; &#160; &#60;mx:Style&#62;
&#160; &#160; &#160; &#160; PopUpButton {
&#160; &#160; &#160; &#160; &#160; &#160; popUpStyleName: MyCustomPopUpStyleName;
&#160; &#160; &#160; &#160; }
&#160;
&#160; &#160; &#160; &#160; .MyCustomPopUpStyleName {
&#160; &#160; &#160; &#160; &#160; &#160; fontWeight: normal;
&#160; &#160; &#160; &#160; &#160; &#160; textAlign: left;
&#160; &#160; [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Flex中如何通过itemClick事件阻止用户点击选中Tree的某一分支节点的例子</title>
		<link>http://blog.minidx.com/2009/02/25/2180.html</link>
		<comments>http://blog.minidx.com/2009/02/25/2180.html#comments</comments>
		<pubDate>Wed, 25 Feb 2009 00:32:45 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Tree]]></category>
		<category><![CDATA[dataDescriptor]]></category>
		<category><![CDATA[isbranch]]></category>
		<category><![CDATA[itemClick]]></category>
		<category><![CDATA[selectedItem]]></category>
		<category><![CDATA[Tree.]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/?p=2180</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何通过itemClick事件，阻止用户点击选中Tree的某一分支节点。
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.events.ListEvent;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function tree_itemClick(evt:ListEvent):void {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; var item:Object = evt.currentTarget.selectedItem
&#160; &#160; &#160; &#160; &#160; &#160; [...]]]></description>
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		<slash:comments>1</slash:comments>
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		<item>
		<title>Flex中如何利用isBranch()事件检测Tree的节点是支节点还是叶子节点的例子</title>
		<link>http://blog.minidx.com/2008/12/26/1829.html</link>
		<comments>http://blog.minidx.com/2008/12/26/1829.html#comments</comments>
		<pubDate>Fri, 26 Dec 2008 11:53:36 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Tree]]></category>
		<category><![CDATA[dataDescriptor]]></category>
		<category><![CDATA[isbranch]]></category>
		<category><![CDATA[labelFunction]]></category>
		<category><![CDATA[Tree.]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/?p=1829</guid>
		<description><![CDATA[接下来的例子演示了Flex中如何利用isBranch()事件，检测Tree的节点是支节点还是叶子节点。
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.events.ListEvent;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private function tree_itemClick(evt:ListEvent):void {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; var itemIsBranch:Boolean = tree.dataDescriptor.isBranch(tree.selectedItem);
&#160; &#160; &#160; &#160; &#160; &#160; [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Flex的树形控件(Tree Control)中如何通过点击行进行展开/缩进的例子</title>
		<link>http://blog.minidx.com/2008/04/06/694.html</link>
		<comments>http://blog.minidx.com/2008/04/06/694.html#comments</comments>
		<pubDate>Sun, 06 Apr 2008 00:58:29 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[dataDescriptor]]></category>
		<category><![CDATA[expandItem]]></category>
		<category><![CDATA[getChildren]]></category>
		<category><![CDATA[isbranch]]></category>
		<category><![CDATA[isItemOpen]]></category>
		<category><![CDATA[Tree.]]></category>
		<category><![CDATA[树形控件]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/2008/04/06/694.html</guid>
		<description><![CDATA[接下来的例子演示了如何通过点击行来替代点击箭头图标展开/缩进树形控件(Tree Control)中的项目。
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&#160;mx.collections.ICollectionView;
&#160; &#160; &#160; &#160; &#160; &#160; import&#160;mx.events.ListEvent;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private&#160;function tree_itemClick(evt:ListEvent):void {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; var&#160;item:Object = Tree(evt.currentTarget).selectedItem;
&#160; &#160; [...]]]></description>
		<wfw:commentRss>http://blog.minidx.com/2008/04/06/694.html/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Flex中如何利用树形控件(Tree Control)和SWFLoader控件创建简单图片相册的例子</title>
		<link>http://blog.minidx.com/2008/04/05/693.html</link>
		<comments>http://blog.minidx.com/2008/04/05/693.html#comments</comments>
		<pubDate>Sat, 05 Apr 2008 12:47:48 +0000</pubDate>
		<dc:creator>Minidxer</dc:creator>
				<category><![CDATA[Flex]]></category>
		<category><![CDATA[dataDescriptor]]></category>
		<category><![CDATA[hasownproperty]]></category>
		<category><![CDATA[isbranch]]></category>
		<category><![CDATA[itemRenderer]]></category>
		<category><![CDATA[SWFLoader]]></category>
		<category><![CDATA[Tree.]]></category>

		<guid isPermaLink="false">http://blog.minidx.com/2008/04/05/693.html</guid>
		<description><![CDATA[
在利用Flex的HorizontalList控件创建一个简单的图片展示（相册）中我们了解了如何利用HorizontalList创建相册，接下来的例子演示了如何利用树形控件(Tree Control)和SWFLoader控件创建一个简单图片相册。
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&#160;mx.events.ListEvent;
&#160;
&#160; &#160; &#160; &#160; &#160; &#160; private&#160;function tree_itemClick(evt:ListEvent):void {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; var&#160;t:Tree = evt.currentTarget as Tree;
&#160; &#160; &#160; &#160; &#160; &#160; [...]]]></description>
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