root/as3/KujiraFlexCompo/CheckList/src/CheckList.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:List xmlns:mx="http://www.adobe.com/2006/mxml">
        <mx:Script><![CDATA[
        import mx.events.ListEvent;
        public function changeHandler(data:Object, v:Boolean):void {
                data.selected = v;
                dispatchEvent(new ListEvent(ListEvent.CHANGE));
        }
        ]]></mx:Script>
        <mx:itemRenderer>
                <mx:Component>
                        <mx:HBox>
                                <mx:Script>
                                        <![CDATA[
                                                private function getLabel(data:Object):String {
                                                        return String(data.label);
                                                }
                                                private function getSelected(data:Object):Boolean {
                                                        return Boolean(data.selected);
                                                }
                                        ]]>
                                </mx:Script>
                                <mx:CheckBox id="a_chk"
                                        label="{getLabel(data)}"
                                        selected="{getSelected(data)}"
                                        change="outerDocument.changeHandler(data, a_chk.selected)"/>
                        </mx:HBox>
                </mx:Component>
        </mx:itemRenderer>
</mx:List>