When changed event fire in FileWatcher
<p>I'm using <code>FileWatcher</code> to monitor an xml file to track of changes. I just want to fire some method when the contents of the file is changed, file is re-named or even deleted. </p>

<p>Subscribing to <code>Changed</code> event is enough for this? </p>

<p>Do I need to subscribe to other events as well?</p>
