Text in Text File Can't be Loaded into a TextArea

Question

I am trying to do a very simple task: load the text contained in a text file to a TextArea. The file in question indeed exists.
Below is my code. I hope someone can point out why the TextArea remains empty.
TIA,
mlavie
The code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
  <![CDATA[
   protected function myButton_clickHandler(event:MouseEvent):void
    var file:File = new File(); 
    file.url = "file:///C:/myTextFile.txt";
    var fileStream:FileStream = new FileStream();
    fileStream.open(file, FileMode.READ);
    var fileText:String = fileStream.readUTFBytes(fileStream.bytesAvailable);
    fileStream.close();
    myTextArea.text = fileText;
  ]]>
</mx:Script>
<mx:Button x="116" y="193" label="Button" id="myButton" click="myButton_clickHandler(event)"/>
<mx:TextArea x="85" y="25" width="251" height="109" id="myTextArea"/>
</mx:Application>

Answer 1

Thanks - after I posted I realized that I misunderstood the forum hierarchy.
In any case, I solved it: I should have used "mx:WindowedApplication" instead of "mx:Application".