[ ] {label: 'Show Labels', mode: 'labels'}, {label: 'Show Titles', mode: 'titles'} ); ]]> </fx:Script> protected function btnBar_changeHandler(event:IndexChangeEvent):void { var selectedItem:Object = btnBarData.getItemAt(event.newIndex) as Object; switch(selectedItem.mode) { case "labels": trace('Leif, Zach, Stacey'); break; case "titles": trace('Evangelist, Director, Information Architect'); break; default: break; } } <s:ButtonBar id="btnBar" dataProvider="{btnBarData}" change="btnBar_changeHandler(event)"/> </s:Application>