Hi!
I’m trying to redesign a project I’ve been developing to fit a MVH architecture
I’m having trobule with the Model which consits of a class that contains a HTTPService object.
This is the MODEL:
package classes.model {
import mx.rpc.events.ResultEvent;
import mx.rpc.http.HTTPService;
import XMLList;
import mx.collections.XMLListCollection;
import flash.system.Security;
[Bindable]
public class Stations {
private var _httpService:HTTPService = new HTTPService();
private var _xmlData:XMLList = new XMLList();
private var _xmlDataColllection:XMLListCollection;
public function Stations():void {
getData();
}
public function getData():XMLListCollection {
//This is needed for the Flash Player to grant access to load the PHP data
Security.loadPolicyFile("http://localhost/crossdomain.xml");
_httpService = new HTTPService();
_httpService.url = "http://localhost/phpFile.php";
_httpService.useProxy = false;
_httpService.method = "POST";
_httpService.resultFormat = "e4x";
_httpService.addEventListener(ResultEvent.RESULT, onResult)
_httpService.send();
function onResult(event:ResultEvent):XMLListCollection {
_xmlData = event.result.fields.field;
_xmlDataColllection = new XMLListCollection(_xmlData);
return _xmlDataColllection;
}
return _xmlDataColllection;
}
}
}
This is the VIEW:
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" initialize="init()">
<mx:Script>
<![CDATA[
import classes.model.Stations;
import mx.collections.XMLListCollection;
[Bindable]
private var stationData:Stations;
private function init():void {
trace (stationData.getData);
}
]]>
</mx:Script>
<mx:VBox>
<mx:DataGrid id="stationGrid" />
</mx:VBox>
</mx:Panel>
When I run this, I get the following error:
Error #1009: Cannot access a property or method of a null object reference.
Please help me!
