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4.5 adobe builder/flex eventhandler/skinablepopupcontainer returned data empty
protected function button1_clickHandler(event:MouseEvent):void
{


// Create an instance of MyAlertPopUp.
var alertDB:AlertMsgPurge = new AlertMsgPurge();
// Add an event handler for the close event to check for
// any returned data.
alertDB.addEventListener('close', alertDB_closeHandler);
alertDB.open(this, true);

}
private function alertDB_closeHandler(eventP:PopUpEvent):void {
// If commit is false, do data is returned.

rd.text = eventP.data as String;
//return;

                /
}

<?xml version="1.0" encoding="utf-8"?>
    <s:SkinnablePopUpContainer xmlns:fx="http://ns.adobe.com/mxml/2009"
       xmlns:s="library://ns.adobe.com/flex/spark"
       xmlns:mx="library://ns.adobe.com/flex/mx">

<fx:Script>

    <![CDATA[
        // //
    public function onClick(commit:Boolean):void {
    close(true);
    }
    ]]>
</fx:Script>
<s:TitleWindow title="" x="75" y="300">

    <s:VGroup horizontalAlign="center" paddingTop="8" paddingBottom="8"    paddingLeft="8" paddingRight="8" gap="5" width="100%">
        <s:Label text="Warning!! all data will be deleted"/>
        <s:Button label="Yes" click="close(true);"/>
        <s:Button label="No" click="close(false);"/>
    </s:VGroup>
</s:TitleWindow>

private function alertDB_closeHandler(eventP:PopUpEvent):void {
        trace("eventdata:"+eventP.commit);
}