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PONeed to process the return string from a URLLoader.load call
 

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    <p>I have the requirement in a Flex application to create &amp; populate an object from the return from a call to a URL. Here is what I need to be able to do:</p> <ol> <li>I have a class which communicates with the web server.</li> <li>I have a function in this class (called getPerson) which would return a Person object which is populated from the XML data returned from the web server.</li> </ol> <p>The problem I am running into (and it seems this is a very common problem, but I have not seen a solution which I can see would work) is that the load method of the URLLoader is asynchronous.</p> <p>I have an event listener firing on the Event.COMPLETE event which parses the XML and populates my object in the event handler, but how would I get this object back to my originating code in my application which originally called my getPerson function?</p> <p>So by the time the return from the server comes back, my method is finished and I cannot return my populated Person object.</p> <p>My question is how can I accomplish this? I am still fairly new to ActionScript and have been spinning my wheels for a day now on this.</p> <p>I've added some sample code which demonstrates the problem I am having - I have simplified what I am using:</p> <p><strong>MXML application file:</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;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)"&gt; &lt;fx:Script&gt; &lt;![CDATA[ import mx.events.FlexEvent; protected function application1_creationCompleteHandler(event:FlexEvent):void { var d:DAL = new DAL(); d.CreateNewPerson( "John Smith" ); } ]]&gt; &lt;/fx:Script&gt; &lt;fx:Declarations&gt; &lt;!-- Place non-visual elements (e.g., services, value objects) here --&gt; &lt;/fx:Declarations&gt; &lt;/s:Application&gt; </code></pre> <p><strong>DAL.cs file:</strong></p> <blockquote> <pre><code>package { import flash.events.Event; import flash.net.URLLoader; import flash.net.URLRequest; import flash.net.URLRequestMethod; import mx.controls.Alert; public class DAL { public function DAL() { } public function CreateNewPerson( Name:String ):void { var strXML:String = "&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?&gt;"; var loader:URLLoader = new URLLoader(); loader.addEventListener(Event.COMPLETE, onPostComplete); var request:URLRequest = new URLRequest( "http://www.cnn.com" ); request.method = URLRequestMethod.POST; request.data = strXML; loader.load(request); } private function onPostComplete( evt:Event ):void { //Process returned string //Here is where I need to return my object var obj:Object = new Object() } } } </code></pre> </blockquote> <p>What I need to do is somehow get the "obj" variable back out to my MXML application file so I can use it there.</p> <p>Thanks in advance!</p>
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    1. COWould help if you publish some codes. On a side note, why don't you move the codes from your originating codes to the Event.COMPLETE event?
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      1. USAngelo
 

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