Flex中Tree组件的数据源举例（xml，array，object）

最新推荐文章于 2025-08-08 22:07:46 发布

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最新推荐文章于 2025-08-08 22:07:46 发布

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分类专栏： Flex 文章标签： object tree xml flex application encoding

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本文展示了一个使用Adobe Flex框架创建的Tree控件示例，该控件支持多种数据源类型，包括XML、XMLList、Array、ArrayCollection及Object，并演示了如何根据不同数据源类型获取选中节点的信息。

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转：http://blog.sina.com.cn/s/blog_5fc933730100kw0y.html

<?xml version="1.0" encoding="utf-8"?>  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Script>  </mx:Script> <mx:XMLList id="treeData_xmllist"> <node label="Mail Box"> <node label="Inbox"> <node label="Marketing"/> <node label="Product Management"/> <node label="Personal"/> </node> <node label="Outbox"> <node label="Professional"/> <node label="Personal"/> </node> <node label="Spam"/> <node label="Sent"/> </node> </mx:XMLList> <mx:XML id="treeData_xml"> <node label="Mail Box"> <node label="Inbox"> <node label="Marketing"/> <node label="Product Management"/> <node label="Personal"/> </node> <node label="Outbox"> <node label="Professional"/> <node label="Personal"/> </node> <node label="Spam"/> <node label="Sent"/> </node> </mx:XML>  <mx:Array id="treeData_array"> <mx:Object label="Mail Box"> <mx:children> <mx:Object label="Inbox"> <mx:children> <mx:Object label="Marketing"/> <mx:Object label="Product Management"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Outbox"> <mx:children> <mx:Object label="Professional"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Spam"/> <mx:Object label="Sent"/> </mx:children> </mx:Object> </mx:Array> <mx:ArrayCollection id="treeData_arrayCollection"> <mx:Object label="Mail Box"> <mx:children> <mx:Object label="Inbox"> <mx:children> <mx:Object label="Marketing"/> <mx:Object label="Product Management"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Outbox"> <mx:children> <mx:Object label="Professional"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Spam"/> <mx:Object label="Sent"/> </mx:children> </mx:Object> </mx:ArrayCollection> <mx:Object label="Mail Box" id="treeData_object"> <mx:children> <mx:Object label="Inbox"> <mx:children> <mx:Object label="Marketing"/> <mx:Object label="Product Management"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Outbox"> <mx:children> <mx:Object label="Professional"/> <mx:Object label="Personal"/> </mx:children> </mx:Object> <mx:Object label="Spam"/> <mx:Object label="Sent"/> </mx:children> </mx:Object> <mx:Panel title="Tree Control Example" height="75%" width="75%" paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10"> <mx:Label width="100%" color="blue" text="Select a node in the Tree control."/> <mx:HDividedBox width="100%" height="100%">   <mx:Tree id="myTree" width="50%" height="100%" labelField="label" showRoot="false" dataProvider="{treeData_object}" change="treeChanged(event)"/>   <mx:TextArea height="100%" width="50%" text="Selected Item: {selectedNodeArr.label}"/>   </mx:HDividedBox> </mx:Panel> </mx:Application>