get component variables values into main application - apache-flex

Question

i have a component which gets the data selected by the radio button
<mx:itemRenderer >
<fx:Component id="radio">
<mx:RadioButton selected="false" useHandCursor="true" change="item_changeHandler(event)">
<fx:Script>
<![CDATA[
private var data_id:int;
private var data_name:String;
protected function item_changeHandler(event:Event):void
{
data_id=data.id;
data_name=data.name;
}
]]>
</fx:Script>
</mx:RadioButton>
</fx:Component>
</mx:itemRenderer>
here there are 2 variables data_id and data_name and i want to use this component variables in the main application which get called when i click a button so what to do how do i call the variables values into this function i tried this
protected function delete_clickHandler(event:MouseEvent):void
{
// TODO Auto-generated method stub
dispatchEvent( new Event( Event.CHANGE ) );
deleteTaxonomy(data.id, data.name);
}

Answer 1

If I understand you correctly, then I would dispatch an event when the id and name changes and catch it in the main application. E.g. you could create a CustomEvent class YouDataEvent.as with the variables id and name. I often use this with my own objects and then send the object with the event. Lets call your object containing the id and name YourObject
import flash.events.Event;
public class YourObjectEvent extends Event
{
public static const YOURDATA_UPDATED:String = "yourdataUpdated";
public var yourObj:YourObject
public function YourObjectEvent(type:String, yourObjInput:YourObject, bubbles:Boolean = true, cancelable:Boolean = false)
{
this.yourObj = yourObjInput;
super(type, bubbles, cancelable);
}
}
Then you can dispatch the event when the data changes e.g. in the *item_changeHandler* method like so:
dispatchEvent(new YourObjectEvent(YourObjectEvent.YOURDATA_UPDATED, yourObjVar));
And catch it at the main application with e.g.:
FlexGlobals.topLevelApplication.addEventListener(YourObjectEvent.YOURDATA_UPDATED, yourObjUpdatedHandler);
private function yourObjUpdatedHandler(event:YourObjectEvent): void {
//DO something
var id:Number = event.yourObj.id;
var name:String = event.yourObj.name
}
Hope this helps!