title: ajaxfileupload - how display a message during onuploadcomplete?
body: <p>I've got the AjaxFileUpload control working fine.</p>
  
  <p>When the OnUploadComplete server side event is called, I'd like to be display a "wait" message while they are waiting.</p>
  
  <pre><code>protected void OnUploadComplete(object sender, AjaxFileUploadEventArgs e)
  {
      try
      {
          // does something very long
      }
      catch (Exception ex)
      {
  
      }
  }
  </code></pre>
  
  <p>How can I do this ?</p>