<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/23/setting-the-node-indentation-level-when-calling-the-toxmlstring-method-in-actionscript-30/ -->
<mx:Application name="XML_prettyIndent_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        creationComplete="init();" viewSourceURL="srcview/index.html">

    <mx:Script>
        <![CDATA[
            import mx.events.SliderEvent;

            private const xmlObj:XML = describeType(Application);

            private function init():void {
                slider.value = XML.prettyIndent;
                textArea.text = xmlObj.toXMLString();
            }

            private function slider_change(evt:SliderEvent):void {
                XML.prettyIndent = evt.value;
                textArea.text = xmlObj.toXMLString();
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="prettyIndent:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="8"
                        snapInterval="1"
                        tickInterval="1"
                        liveDragging="true"
                        change="slider_change(event);" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:TextArea id="textArea"
            editable="false"
            wordWrap="false"
            width="100%"
            height="100%" />

</mx:Application>