Add data to ComboBox when click the button

       


<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    initialize="initData()">
    <mx:Script>
        
            import mx.collections.*;
            [Bindable]
            public var stateArray:ArrayCollection;
            public function initData():void {
                stateArray=new ArrayCollection(
                [{label:"AL", data:"aa"},
                 {label:"AK", data:"BB"},
                 {label:"AR", data:"CC"}]);
            }
          
    </mx:Script>
    <mx:ComboBox id="myComboBox" dataProvider="{stateArray}" />

    <mx:Button label="Add AZ" click="myComboBox.dataProvider.addItem({'label':'Z','data':'ZZ'});" />
</mx:Application>

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Add data to ComboBox when click the button : ComboBox Data « Components « Flex

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