title: How to retrieve file from GWT FileUpload component?
body: <p>I want to upload a file using GWT fileUploader component, </p>
  
  <p>I tried like this,</p>
  
  <pre><code>FileUpload fileUpload = new FileUpload();
  filepload.addChangeHandler(new new ChangeHandler() {
      @Override
      public void onChange(ChangeEvent event) {
           // here i submit the form, and a response is created to client side to display success message.
      } });
  </code></pre>
  
  <ul>
  <li>OK, so far i can upload a file and, from servlet i can give a success message.</li>
  <li>I handled it with in onSubmitCompleate event of form panel, </li>
  <li>thanks allot.</li>
  <li>let me ask one more thing, is there anyway i can display the file uploaded, before saving it into the database? </li>
  <li>i.e., actually i need to provide a composite component for uploading a file and text area to tell details about the file.</li>
  <li>and when user choose file for uploading, i want give a display of file uploaded(so that he can ensure correct file is uploaded)</li>
  <li>and it will be saved to db when whole form is submitted.</li>
  </ul>