frameworks/projects/framework/asdoc/en_US/mx/controls/examples/LabelExample.mxml

<?xml version="1.0"?>
<!--

  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

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  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

-->
<!-- Simple example to demonstrate the Halo Label control -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">

    <fx:Script>
        <![CDATA[
            private var htmlData:String = "<br>This Label displays <b>bold</b> and <i>italic</i> HTML-formatted text.";

            // Set HTML formatted label
            private function displayHTML():void {
                simpleLabel.htmlText = htmlData;
            }

            // Set plain text formatted label
            private function displayText():void {
                simpleLabel.text = "This Label displays plain text.";
            }
        ]]>
    </fx:Script>

    <s:Panel title="Halo Label Control Example"
            width="75%" height="75%" 
            horizontalCenter="0" verticalCenter="0">
        <s:VGroup left="10" right="10" top="10" bottom="10">
            <mx:Label id="simpleLabel" text="This Label displays plain text." />
            <s:Button id="Display" label="Click to display HTML Text" click="displayHTML();" />
            <s:Button id="Clear" label="Click to display plain text" click="displayText();" />
        </s:VGroup>
    </s:Panel>

</s:Application>