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,AIR
        trace(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Object
  private 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,AIR
        trace(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>