title: jqGrid sorting on client side
body: <p>I have a tree-grid with autoloading rows. The goal is to sort the grid by tree column, right on <strong>client side</strong>.</p>
  
  <p>But each time I click on sort column header, it <em>issues</em> an Ajax call for sorting, but all I need is on-place sorting using the local data.</p>
  
  <p>Do I have incorrect grid parameters or doesn't tree work with client-side sorting on tree column?</p>
  
  <p>Current jqGrid params for sorting are are:</p>
  
  <pre><code>loadonce: true, // to enable sorting on client side
  sortable: true //to enable sorting
  </code></pre>