Open event for ComboBox : ComboBox Event « Components « Flex

Open event for ComboBox

Open event for ComboBox

<?xml version="1.0"?>
<mx:Application xmlns:mx="">

        private function dropEvt(event:DropdownEvent):void {
            forChange.text+=event.type + "\n";

        private function changeEvt(event:Event):void {
            forChange.text+=event.currentTarget.selectedItem.label + " " + event.currentTarget.selectedIndex + "\n";
    <mx:ComboBox open="dropEvt(event)" close="dropEvt(event)" change="changeEvt(event)">
            <mx:Object label="A" data="AA" />
            <mx:Object label="B" data="BB" />
            <mx:Object label="C" data="CC" />
    <mx:TextArea id="forChange" width="150" height="100%" />


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