Use changeEvent to display value

    

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        
        import flash.events.Event;
        import mx.events.DropdownEvent;
        private function dropEvt(event:DropdownEvent):void {
            forChange.text+=event.type + "\n";
        }
        private function changeEvt(event):void {
            forChange.text=event.currentTarget.selectedItem.state + " " + event.currentTarget.selectedItem.capital + " " + event.currenttarget.selectedIndex;
        }
      
    </mx:Script>

    <mx:ComboBox open="dropEvt(event)" close="dropEvt(event)"
        change="changeEvt(event)" labelField="state">
        <mx:ArrayCollection>
            <mx:Object state="A" capital="AA" />
            <mx:Object state="B" capital="BB" />
            <mx:Object state="C" capital="CC" />
        </mx:ArrayCollection>
    </mx:ComboBox>
    <mx:TextArea id="forChange" width="150" height="100%" />
</mx:Application>

Related examples in the same category

1.	Open event for ComboBox
2.	Close event for ComboBox
3.	Change event for ComboBox
4.	open event and change event for ComboBox
5.	ComboBox change event
6.	Information from ComboBox events

Use changeEvent to display value : ComboBox Event « Components « Flex

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