Flex 父窗口子窗口数据传递

发布时间：2020-12-15 04:57:38 所属栏目：百科来源：网络整理

导读：Flex 父窗口子窗口数据传递 2009-01-11 1:51 这里通过一个实例演示Flex父窗口和弹出的子窗口之间的数据传输。先创建一个MXML component 命名为ListTitleWindow.mxml (Based on : TitleWindow) xml 代码 ? xml ? version = "1.0" ? encoding = "utf-8" ? ?

Flex 父窗口子窗口数据传递

2009-01-11 1:51

这里通过一个实例演示Flex父窗口和弹出的子窗口之间的数据传输。

先创建一个MXML component 命名为ListTitleWindow.mxml (Based on : TitleWindow)

xml 代码

<?xml?version="1.0"?encoding="utf-8"?>??
<mx:TitleWindow?xmlns:mx="http://www.adobe.com/2006/mxml"?layout="vertical"?width="400"?height="300"??
????creationComplete="initComponent()"??
??????showCloseButton="true"??
??????close="closeWindow()">??
???? ??
????<mx:Script>??
??
????????<CDATA??
????????? ??
???????? /* 数据xml格式如下： ??
????????????<items>??
????????????????<item?label="Tom"?data="num001"/>??
????????????????<item?label="Lucy"?data="num002"/>??
????????????</items>???
???????? */ ??
???????? ??
????????? import mx.managers.PopUpManager; ??
????????? import mx.rpc.events.ResultEvent; ??
????????? import mx.controls.Alert; ??
????????? ??
????????? [Bindable]public var?mainApp:Object?=?null;?? ??
????????? [Bindable]public var headTitle:String;???????? ??
????????? [Bindable]public var url:String; ??
????????? [Bindable]public var selectedItem:Object; ??
????????? [Bindable]public var callbackFunction:Function;?? //回调函数 ??
????????? ??
????????? private function initComponent():void { ??
???????????? //listDataService.url?= url; ??
???????????? listDataService.send(); ??
????????? } ??
????????? ??
???????? //closeWindow ??
????????? private function closeWindow():void { ??
??????????????? PopUpManager.removePopUp(this); ??
????????? } ??
????????? ??
????????? private function submit():void { ??
????????????? PopUpManager.removePopUp(this); ??
????????????? if (selectedItem != null && callbackFunction != null) { ??
????????????????? //调用父窗体的方法并以参数形式返回选择结果 ??
????????????????? callbackFunction.call(mainApp,selectedItem.data); ??
????????????? } ??
????????? } ??
????????? ??
????????? private function mySelection(oEvent:Event):void { ??
?????????????selectedItem?=?oEvent.target.selectedItem; ??
????????? }??? ??
???????? ??
???????? private function initListData(event:ResultEvent):void { ??
???????????? //使用HTTPService返回的xml数据,初始化List数据 ??
????????????dataList.dataProvider?=?event.result.items.item; ??
???????? } ??
??
????????>??
????</mx:Script>??
??
????<mx:HTTPService?id="listDataService"?url="{url}"?showBusyCursor="true"??result="initListData(event)"?/>??
??
????<mx:Label?text="{headTitle}"/>??
???? ??
????<mx:List?id="dataList"?width="100%"?color="blue"?change="mySelection(event)"?/>??
??
????<mx:VBox?width="100%">??
????????<mx:Label?text="Selected State: {selectedItem.label}"/>??
????????<mx:Button?label="OK"?click="submit();"/>??
????</mx:VBox>??
???? ??
</mx:TitleWindow>??

使用一个MXML application 作为父窗体,代码如下

xml 代码

xml?version="1.0"?encoding="utf-8"?>??
<mx:Application?xmlns:mx="http://www.adobe.com/2006/mxml"?layout="absolute"??
????initialize="initApp()">??
????<mx:Style?source="styles/main.css"/>??
???????????????? ??
????<mx:Script>??
????
???? import mx.controls.Alert;
???? import flash.display.StageDisplayState;
???? import components.window.ListTitleWindow;
???? import mx.containers.TitleWindow;
???? import mx.managers.PopUpManager;
???? import mx.collections.ArrayCollection;
???? private function initApp() : void {
???? }
???? private function showTitleWindow():void {
???????? var titleWindowInstance:ListTitleWindow =
???????????? ListTitleWindow(PopUpManager.createPopUp(this,ListTitleWindow,false));
????????
???????? titleWindowInstance.title = "Welcome";
???????? titleWindowInstance.width = 400;
???????? titleWindowInstance.height = 300;???
???????? titleWindowInstance.mainApp = this;??
???????? titleWindowInstance.headTitle = "Select a item.";
???????? titleWindowInstance.url="http://localhost:8080/test.xml";
???????? titleWindowInstance.callbackFunction = this.myFunction;
????????
???????? PopUpManager.centerPopUp(titleWindowInstance);
????? }
?????????
???? public function myFunction(bb:String):void {
???????? Alert.show(bb);
???? }
???? ]]>??
??
????mx:Script>??
???? ??
????<mx:Button?x="63"?y="96"?label="Button"?click="showTitleWindow();"/>??
???? ??
mx:Application>??

（编辑：李大同）

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Flex 父窗口 子窗口 数据传递

Flex 父窗口子窗口数据传递