Flex之旅：第一部分：flex必备基础知识积累(4)---ArrayCollection, Array赋值写法

ArrayCollection:

标签赋值写法：

比如有一个自定的类：Persion.as:

package vo{[Bindable]public class Persion{public var id:String;public var age:int;public var name:String;public function Persion(){toString();}public function toString():String{return "{id:"+id+" age:"+age+" name:"+name+"}";}}}

<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"   xmlns:s="library://ns.adobe.com/flex/spark"   xmlns:mx="library://ns.adobe.com/flex/mx"   minWidth="955" minHeight="600"   creationComplete="application1_creationCompleteHandler(event)" xmlns:vo="vo.*"><fx:Script><![CDATA[import mx.events.FlexEvent;protected function application1_creationCompleteHandler(event:FlexEvent):void{trace(ac1); //Flex,Flash,Flash Media Server,Flash Lite,AIRtrace(ac2); //{id:null age:1 name:1},{id:null age:2 name:2},{id:null age:3 name:3}}]]></fx:Script><fx:Declarations><s:ArrayCollection id="ac1"><fx:String>Flex</fx:String><fx:String>Flash</fx:String><fx:String>Flash Media Server</fx:String><fx:String>Flash Lite</fx:String><fx:String>AIR</fx:String></s:ArrayCollection><s:ArrayCollection id="ac2"><vo:Persion age="1" name="1"></vo:Persion><vo:Persion age="2" name="2"></vo:Persion><vo:Persion age="3" name="3"></vo:Persion></s:ArrayCollection></fx:Declarations></s:Application>

直接赋值写法：

// 自定义Objectprivate var items:ArrayCollection=new ArrayCollection([{label:'Live', value1:'N',refCodeA:'LIVE'},{label:'Trading Hierarchy', value1:'N',refCodeA:'TRAD'},{label:'Production Demo', value1:'Y',refCodeA:'PROD'},{label:'PAT Demo', value1:'Y',refCodeA:'PAT'},{label:'Derivative Clearance Demo', value1:'Y',refCodeA:'DCT'},{label:'Client On-Boarding Tool', value1:'N',refCodeA:'CONB'}]);// String类型public var yesOrNoList:ArrayCollection = new ArrayCollection(['Y','N']);

Array:

标签赋值写法：

<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"   xmlns:s="library://ns.adobe.com/flex/spark"   xmlns:mx="library://ns.adobe.com/flex/mx"   minWidth="955" minHeight="600"   creationComplete="application1_creationCompleteHandler(event)"><fx:Script><![CDATA[import mx.events.FlexEvent;protected function application1_creationCompleteHandler(event:FlexEvent):void{trace(array1);<span style="white-space:pre"></span>// Flex,Flash,Flash Media Server,Flash Lite,AIRtrace(array2);<span style="white-space:pre"></span>// Flex0,Flash0,Flex1,Flash1,Flex2,Flash2,Java2}]]></fx:Script><fx:Declarations><fx:Array id="array1"><fx:String>Flex</fx:String><fx:String>Flash</fx:String><fx:String>Flash Media Server</fx:String><fx:String>Flash Lite</fx:String><fx:String>AIR</fx:String></fx:Array><fx:Array id="array2" ><fx:Array><fx:String>Flex0</fx:String><fx:String>Flash0</fx:String></fx:Array><fx:Array><fx:String>Flex1</fx:String><fx:String>Flash1</fx:String></fx:Array><fx:Array><fx:String>Flex2</fx:String><fx:String>Flash2</fx:String><fx:String>Java2</fx:String></fx:Array></fx:Array></fx:Declarations></s:Application>

直接赋值写法：

var myArray:Array = ["one", "two", "three"]; var arr:Array = new Array("red", "blue", "white", "black", "green", "yellow");private var items:Array = [{label:'Live', value1:'N',refCodeA:'LIVE'},{label:'Trading Hierarchy', value1:'N',refCodeA:'TRAD'},{label:'Production Demo', value1:'Y',refCodeA:'PROD'},{label:'PAT Demo', value1:'Y',refCodeA:'PAT'},{label:'Derivative Clearance Demo', value1:'Y',refCodeA:'DCT'},{label:'Client On-Boarding Tool', value1:'N',refCodeA:'CONB'}];

Object(如果自己懒得去写自定义Object):

<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"   xmlns:s="library://ns.adobe.com/flex/spark"   xmlns:mx="library://ns.adobe.com/flex/mx"   minWidth="955" minHeight="600"   creationComplete="application1_creationCompleteHandler(event)" xmlns:vo="vo.*"><fx:Script><![CDATA[import mx.events.FlexEvent;protected function application1_creationCompleteHandler(event:FlexEvent):void{// 先定义，后赋值的写法（注意，这里支持嵌套）var o2:Object = new Object();o2["column1"] = "c1";o2["column2"] = "c2";o2["column3"] = "c3"; o2.position = {department:"Accounting",salary:50000, title:"Junior Accountant"};// 直接赋值写法（注意，这里支持嵌套）var person:Object = {name:"John Smith", age:22,position:{department:"Accounting",salary:50000, title:"Junior Accountant"},id:303};trace(o1);trace(o2);trace(person);}]]></fx:Script><fx:Declarations><!-- 标签定义写法 /--><fx:Object id="o1" field1="1" field2="2" field3 = "3" /></fx:Declarations></s:Application>