title: jqGrid tree grid with local data
body: <p><a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki:treegrid" rel="nofollow noreferrer" title="jqGrid docs">jqGrid docs</a> for tree grid says:</p>
  <blockquote>
  <p>&quot;Currently jqGrid can work only with data returned from server. There are some tricks and articles which describes how to work with local data.&quot;</p>
  </blockquote>
  <p>Fair enough, but I was unable to find such articles. Any hints on how I can achieve it, preferably with equivalent of <code>datatype=local</code>?</p>