RadioButtonGroup 속성 이용방법

RadioButtonGroup에서 해당 RadioButton의 속성 값을 가지고 오는 방법 2가지

1. 'itemClick' 이벤트 리스너를 통한 방법(value값만)

 import mx.controls.Alert;
        import  mx.events.ItemClickEvent;
   
        // Event handler function to display the selected button
        // in an Alert control.
        private function handleCard(event:ItemClickEvent):void {
            if (event.currentTarget.selectedValue == "AmEx") {
                    Alert.show("You selected American Express")
            }
            else {
                if (event.currentTarget.selectedValue == "MC") {
                    Alert.show("You selected MasterCard")
                }
                else {
                    Alert.show("You selected Visa")
                }
            }
        }
        ]]>
    </mx:Script>

<mx:RadioButtonGroup id="cardtype" itemClick="handleCard(event);"/>
<mx:RadioButton groupName="cardtype" id="americanExpress" value="AmEx"
            label="American Express" width="150" />
<mx:RadioButton groupName="cardtype" id="masterCard" value="MC"
            label="MasterCard" width="150" />
<mx:RadioButton groupName="cardtype" id="visa" value="Visa"
            label="Visa" width="150" />

2.'numRadioButtonsChanged' 이벤트를 이용(RadioButton 자체)


mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;

            private function init():void {
                radioGroup.addEventListener("numRadioButtonsChanged", radioGroup_numRadioButtonsChanged);
            }

            private function radioGroup_numRadioButtonsChanged(evt:Event):void {
                var rb:RadioButton = radioGroup.getRadioButtonAt(radioGroup.numRadioButtons-1);
                var alert:Alert = Alert.show(evt.toString(), "label:" + rb.label);
                alert.status = "numRadioButtons:" + radioGroup.numRadioButtons;
            }
        ]]>
    </mx:Script>

    <mx:RadioButtonGroup id="radioGroup" />

    <mx:HBox>
        <mx:RadioButton id="radioButton1" label="Red" group="{radioGroup}" />
        <mx:RadioButton id="radioButton2" label="Orange" group="{radioGroup}" />
        <mx:RadioButton id="radioButton3" label="Yellow" group="{radioGroup}" />
        <mx:RadioButton id="radioButton4" label="Green" group="{radioGroup}" />
        <mx:RadioButton id="radioButton5" label="Blue" group="{radioGroup}" />
    </mx:HBox>

</mx:Application>