Flex 父子窗口的数据交换

Flex 中父窗口和子窗口的数据交换的实现如下.
1 在Flex2中弹出式窗口的API如下
Package :  mx.managers
Class   :        PopUpManager
Methods : addPopUp(window:IFlexDisplayObject, parent:DisplayObject, modal:Boolean = false, childList:String = null):void
参数解释:
window : 要弹出的对象，这对象必须实现了IFlexDisplayObject接口,比如TitleWindow.
parent        : 子窗口的父窗口对象.
modal        : 模式弹出(true)还是非模式弹出(false).
childList        :　弹出式对象在那个对象下弹出.
                 PopUpManagerChildList.APPLICATION
                 PopUpManagerChildList.POPUP     
                 PopUpManagerChildList.PARENT (默认).
2     实例

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%">
<mx:Script>
<![CDATA[
import mx.events.ListEvent;
import com.demo.PersonVO;
import mx.events.ItemClickEvent;
import mx.collections.ArrayCollection;
import mx.managers.PopUpManager;
[Bindable]
private var testDataSource : ArrayCollection = new ArrayCollection(
[      {id : 1 ,name :"zhangsan",language : "java"},
       {id : 2 ,name :"lisi",language : "c++"},
       {id : 3 ,name :"qianwu",language : "vb"},
       {id : 4 ,name :"xiaohong",language : "pb"},
       {id : 5 ,name :"xiaoming",language : "perl"},
])

private function showDetailPersonInfo(event : ListEvent) : void
{
       var personVO : PersonVO =new PersonVO();
  
       personVO.id = event.currentTarget.selectedItem.id
       personVO.name = event.currentTarget.selectedItem.name;
       personVO.language = event.currentTarget.selectedItem.language;
  
       //hard code the detail person information
       personVO.email = "[e-mail]"
       personVO.married = false;
       personVO.workYears = "3 years"
  
       var personPopUpWindow : PersonInfomationPopWindow = new PersonInfomationPopWindow();
       personPopUpWindow.personVO = personVO;
       PopUpManager.addPopUp(personPopUpWindow,this,true);
       PopUpManager.centerPopUp(personPopUpWindow);
}

]]>
</mx:Script>
<mx:DataGrid dataProvider="{testDataSource}" width="100%" height="100%" itemClick="showDetailPersonInfo(event)">
<mx:columns>
       <mx:DataGridColumn dataField="id" headerText="编号" />
       <mx:DataGridColumn dataField="name" headerText="名字" />
       <mx:DataGridColumn dataField="language" headerText="开发语言" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
------------------------------
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow 
xmlns:mx="http://www.adobe.com/2006/mxml" 
width="400" 
height="300" 
showCloseButton="true" 
close="PopUpManager.removePopUp(this)">
<mx:VBox width="400" height="200" paddingTop="10" >
      <mx:HBox width="100%" paddingLeft="10">
       <mx:Label width="40%" text="id:"/>
       <mx:Label text="{personVO.id}"/>  
      </mx:HBox>   
      <mx:HBox width="100%" paddingLeft="10">
       <mx:Label width="40%" text="name:"/>
       <mx:Label text="{personVO.name}"/>  
      </mx:HBox>
      <mx:HBox width="100%" paddingLeft="10">
       <mx:Label width="40%" text="language:"/>
       <mx:Label text="{personVO.language}"/> 
      </mx:HBox>
      <mx:HBox width="100%" paddingLeft="10">
       <mx:Label width="40%" text="workYears:"/>
       <mx:Label text="{personVO.workYears}"/> 
      </mx:HBox>
      <mx:HBox width="100%" paddingLeft="10">
       <mx:Label width="40%" text="married:"/>
       <mx:Label text="{personVO.married}"/> 
      </mx:HBox>
</mx:VBox>
<mx:Script>
      <![CDATA[
       import mx.managers.PopUpManager;
       import com.demo.PersonVO;
       [Bindable]
       public var personVO : PersonVO = null;]]>
</mx:Script>
</mx:TitleWindow>
-------------------------------------------
package com.demo
{
[Bindable]
public class PersonVO
{
  
      public var id : String = "";
      public var name : String = "";
      public var language : String = "";
      public var email : String = "";
      public var workYears : String = "";
      public var married : Boolean = false;
  
  
}
}