title: Progress bar and webclient
body: <p>I have an event that takes about 10-30 seconds, namely downloading information from a page (with quite a lot of traffic), modifying it and then saving it somewhere onto the disk using WebClient. Because it takes such a long time, I want to add a progress bar or make an update label (which says something like updating..) to indicate the progress.</p>
  
  <p>Can someone guide me as to how I would do this? Is there any event in the WebClient I can use to handle this?</p>