Set alpha for control

         

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

    <mx:Script>
        
            import mx.events.EffectEvent;

            private function effectEndHandler(event:EffectEvent):void {
                vbox.alpha = 1;
            }

      
    </mx:Script>

    <mx:Move id="moveEffect" xFrom="100" effectEnd="effectEndHandler(event)" />
    <mx:VBox id="vbox" alpha=".5" creationCompleteEffect="{moveEffect}">
        <mx:TextInput id="textInput1" />
        <mx:TextInput id="textInput2" />
        <mx:TextInput id="textInput3" />
        <mx:TextInput id="textInput4" />
    </mx:VBox>

</mx:Application>

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Set alpha for control : alpha « Effects « Flex

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