代码：
?
- <?xml?version="1.0"?encoding="utf-8"?>?
-
<mx:Application?xmlns:mx="http://www.adobe.com/2006/mxml"?
-
????????layout="vertical"?
-
????????verticalAlign="middle"?
-
????????backgroundColor="white">?
- ?
-
????<mx:Script>?
-
????????<![CDATA[ ?
- ????????????private?function?openAllNodes():void?{ ?
- ????????????????tree.openItems?=?dp..node; ?
- ????????????} ?
- ?
- ????????????private?function?closeAllNodes():void?{ ?
- ????????????????tree.openItems?=?[]; ?
- ????????????} ?
- ????????]]>?
-
????</mx:Script>?
- ?
-
????<mx:XML?id="dp">?
-
????????<root>?
-
????????????<node?label="Parent?1">?
-
????????????????<node?label="Child?1"?/>?
-
????????????????<node?label="Child?2">?
-
????????????????????<node?label="Grandchild?1"?/>?
-
????????????????????<node?label="Grandchild?2"?/>?
-
????????????????</node>?
-
????????????????<node?label="Child?3"?/>?
-
????????????????<node?label="Child?4"?/>?
-
????????????</node>?
-
????????</root>?
-
????</mx:XML>?
- ?
-
????<mx:ApplicationControlBar?dock="true">?
-
????????<mx:Button?label="Open?all?nodes"?click="openAllNodes();"?/>?
-
????????<mx:Button?label="Close?all?nodes"?click="closeAllNodes();"?/>?
-
????</mx:ApplicationControlBar>?
- ?
-
????<mx:Tree?id="tree"?
-
????????????dataProvider="{dp}"?
-
????????????showRoot="false"?
-
????????????labelField="@label"?
-
????????????width="200"?/>?
- ?
-
</mx:Application>?
- <!--?Performance?optimized?by?W3?Total?Cache.?Learn?more:?http://www.w3-edge.com/wordpress-plugins/ ?
- ?
- Minified?using?disk ?
- Page?Caching?using?disk?(enhanced)?(request?URI?contains?query) ?
- Database?Caching?using?disk ?
- Object?Caching?63/145?objects?using?disk ?
- ?
-
Served?from:?blog.minidx.com?@?2012-08-06?07:42:29?-->?
效果：
http://blog.minidx.com/2009/02/24/2178.html
