title: ComboBox that shows all removable devices
body: <p>I have a combobox (ItemsSource="{Binding Path=AvailableDrives}").</p>
  
  <p>The AvailableDrives property is defined like this:</p>
  
  <pre><code> public List&lt;DriveInfo&gt; AvailableDrives
      {
          get
          {
              return DriveInfo.GetDrives().Where(x =&gt; x.DriveType == DriveType.Removable).ToList();
          }
      }
  </code></pre>
  
  <p>It works OK, but i would like that if i plug in/out a USB device that the comboBox gets repopulated without having to close and reopen the window.</p>
  
  <p>How can i achieve this?</p>
  
  <p>thanx#</p>