title: Can i add a callback to a BackgroundWorker that is already running?
body: <p>Is it possible to add a callback to a background worker while it is running ?</p>
  
  <pre><code>bw.DoWork += new DoWorkEventHandler( some callback );
  
  bw.RunWorkerAsync();
  
  bw.DoWork += new DoWorkEventHandler( some callback );
  </code></pre>
  
  <p>Thank you.</p>