title: How to update a Ext JS 4 grid when popup form is submitted
body: <p>Please point me to an Ext JS 4 code sample of a grid with records editable via a popup form. It seems to be a common use case, but I can only find editable grids with editing in place.</p>
  
  <p>My approach:</p>
  
  <ol>
  <li>Each row in the grid has an Edit button, which shows <code>Ext.window.Window</code> with an item <code>Ext.form.Panel</code>. </li>
  <li>When the  form is submitted I have all the fields, which correspond to a record in the grid store. </li>
  <li><p>I get record using:</p>
  
  <p><code>var storeRecord = grid.getStore().getAt(index);</code></p>
  
  <p>But when I modify properties of this record, and hide the form window, the grid does not show updated values. </p></li>
  </ol>
  
  <p>Am I missing some step? Do I need to force refresh? Or maybe there is a standard way to configure the grid with an editor as a form panel?</p>