<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
 
    <mx:Script>
        <![CDATA[
            import mx.core.UIComponent;
            import flash.utils.getQualifiedClassName;
 
            protected function btn_clickHandler(evt:MouseEvent):void {
                var uic:UIComponent;
                var idx:uint;
                var len:uint = cnvs.numChildren;
                for (idx=0; idx<len; idx++) {
                    uic = cnvs.getChildAt(idx) as UIComponent;
                    switch (getQualifiedClassName(uic)) {
                        case "mx.controls::Label":
                        case "mx.controls::Text":
                        case "mx.controls::TextArea":
                        case "mx.controls::TextInput":
                            uic.enabled = !uic.enabled;
                            break;
                    }
                }
            }
        ]]>
    </mx:Script>
 
    <mx:VBox id="cnvs">
        <mx:TextInput id="ti" text="TextInput" />
        <mx:TextArea id="ta" text="TextArea" />
        <mx:DateField id="df" selectedDate="{new Date()}" />
        <mx:Label id="lbl" text="Label" />
        <mx:Text id="txt" text="Text" />
        <mx:ColorPicker id="cp" />
    </mx:VBox>
    <mx:Button id="btn" click="btn_clickHandler(event);" />
 
</mx:Application>