title: How do I update the GUI from another thread?
body: <p>Which is the simplest way to update a <code>Label</code> from another <code>Thread</code>?</p>
  
  <ul>
  <li><p>I have a <code>Form</code> running on <code>thread1</code>, and from that I'm starting another thread (<code>thread2</code>). </p></li>
  <li><p>While <code>thread2</code> is processing some files I would like to update a <code>Label</code> on the <code>Form</code> with the current status of <code>thread2</code>'s work.</p></li>
  </ul>
  
  <p>How could I do that?</p>