title: Display a ListGrid from the start with all its rows expanded
body: <p>I'm using SmartGWT 2.5.</p>
  
  <p>I have a main grid that has its expandable rows in order to display subgrids.
  I simply want to display the main grid with all its rows expanded from the start.</p>
  
  <p>I tried to add a listener containing the following code:</p>
  
  <pre><code>ListGridRecord[] records = getRecords();
  for (ListGridRecord rec : records) {
      expandRecord(rec);
  }
  </code></pre>
  
  <p>I tried with DataArrivedHandler and DrawAreaChangedHandler, but I just get javascript errors client-side or only parts of the rows are expanded. How can I fix this?</p>