title: Ext GWT - Textarea not scroll to bottom
body: <p>I used com.extjs.gxt.ui.client.widget.form.TextArea</p>
  
  <pre><code>txtConsole= new TextArea();  
  txtConsole.setReadOnly(true);
  container.add(txtConsole);
  </code></pre>
  
  <p>and setting its value and trying to set scroll to bottom;</p>
  
  <pre><code>txtConsole.setValue(message);
  txtConsole.setCursorPos(message.length());
  txtConsole.getElement().setScrollTop(txtConsole.getElement().getScrollHeight());
  </code></pre>
  
  <p>But scroll is still at the top of the textarea.
  I am using GWT 2.1 and GXT 2.2.1.</p>
  
  <p>What should I do to send scroll to bottom?</p>
  
  <p>Thanks.</p>