MACROMEDIA FLEX-GETTING STARTED WITH FLEX User Manual download pdf (Page 131)

<![CDATA[

import mx.rpc.events.ResultEvent;

import mx.rpc.http.HTTPService;

private function sendMessage() : void {

var message:String = txtMessage.text;

message = message.replace( /[\r\n]/, '' );

var sendReq:HTTPService = new HTTPService();

sendReq.url = 'http://localhost/aschat

/add.php?user='+escape(txtUser.text)+

'&message='+escape(message);

sendReq.send();

}

private function messageKeyUp( event:KeyboardEvent ) : void {

if ( event.keyCode == Keyboard.ENTER ) sendMessage();

}

private function requestMessages( event:Event = null ) : void {

var msgReq:HTTPService = new HTTPService();

msgReq.url = "http://localhost/aschat

/messages.php?t="+((new Date()).valueOf());

msgReq.resultFormat = 'e4x';

msgReq.addEventListener(ResultEvent.RESULT,

onMessageFetchResult);

msgReq.send();

}

private function onMessageFetchResult( event:ResultEvent ) :

void {

var messages:Array = [];

for each ( var msg:XML in event.result..message ) {

var message:String = msg.text();

message = message.replace( /[\r\n]/, '' );

messages.push( { user: msg.@user, message: message } );

}

msgGrid.dataProvider = messages;

var t:Timer = new Timer( 1000, 1 );

t.addEventListener(TimerEvent.TIMER, requestMessages );

t.start();

}

]]>

</mx:Script>

<mx:DataGrid id="msgGrid" width="260" height="400">

<mx:columns>

<mx:DataGridColumn dataField="user" headerText="User"

width="60" />

<mx:DataGridColumn dataField="message"

headerText="Message" width="200" />

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