Flex 3 组件与数据间的双向绑定
最近才开始学Flex，感觉还真是一个很不错的东西！
关于数据与组件之间的绑定，自己研究了几天，外加其他几位大大的分享，才有所建树，至少是现在做的项目可以完成了。记录在这里，免得以后忘记了，也给初学者分享一下！
MyTest.xmxl
<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" styleName="panelControlBar" creationComplete="init()" xmlns:my="my.*" xmlns:ns1="*"><mx:Panel x="10" y="10" width="546" height="489" layout="absolute"><mx:TileList x="10" y="10" width="438" height="429" rowCount="5" columnCount="5" id="tile_list" dataProvider="{arrayCon}"> <mx:itemRenderer> <mx:Component> <my:MyPanel title="{data.title}" creationComplete="BindingUtils.bindProperty(data, 'good', this, 'good'); BindingUtils.bindProperty(data,'title',this,'title');"> <mx:Script> <![CDATA[ import mx.binding.utils.BindingUtils; ]]> </mx:Script> </my:MyPanel> </mx:Component> </mx:itemRenderer> </mx:TileList></mx:Panel><mx:Button x="10" y="510" label="show ArrayCollection" click="onClick()"/><mx:Script><![CDATA[import mx.utils.ObjectProxy;import mx.controls.Alert;import mx.binding.utils.BindingUtils;import my.MyPanel;import mx.containers.Panel;import mx.controls.Button;import mx.collections.ArrayCollection;[Bindable]private var arrayCon:ArrayCollection=new ArrayCollection();private function init():void {for(var i:Number=0;i<9;i++) {var op:ObjectProxy=new ObjectProxy();op.title="Title";op.good="123";this.arrayCon.addItem(op);}}private function onClick():void {var str:String = "";for (var i:int = 0; i < arrayCon.length; i++) {var o:ObjectProxy=arrayCon.getItemAt(i) as ObjectProxy;str += o.title + " "+o.good+" ";}mx.controls.Alert.show(str);}]]></mx:Script></mx:Application> package my {import flash.events.Event;import flash.events.MouseEvent;import mx.binding.utils.BindingUtils;import mx.containers.Panel;import mx.controls.Label;public class MyPanel extends Panel {private var _str:String="111";public function MyPanel() {super();var label:Label=new Label();label.text=_str;BindingUtils.bindProperty(label,"text",this,"good");this.addChild(label);this.addEventListener(MouseEvent.CLICK,changeTitle);} private function changeTitle(evt:MouseEvent):void{this.title="good";this.good="study";}public function set good(str:String):void{//需要绑定的自定义属性_str=str;dispatchEvent(new Event("changeNIMAIPI"));}[Bindable(event="changeNIMAIPI")]public function get good():String{return _str;}}}