title: "Column Index" on a server-side processed DataTable
body: <p>Does anyone know how to add a <em><strong>column index</strong></em> to a <strong>server-side</strong> processed <a href="http://www.datatables.net" rel="nofollow noreferrer"><strong>DataTable</strong></a>? Basically like <a href="http://www.datatables.net/examples/api/counter_columns.html" rel="nofollow noreferrer">http://www.datatables.net/examples/api/counter_columns.html</a>, but this example builds the index by client, which is not supported by using the common server-side version.</p>
  <p>The author Allan gave three hints, but actually I don't get it:</p>
  <ul>
  <li><em>Modify the data at the server (the ideal solution)</em></li>
  <li><em>Modify the data as it comes back from the server</em></li>
  <li><em>Edit the draw callback function to take into account the page start position.</em></li>
  </ul>
  <p>I stumble and stumble - and I don't know how to start and how to do it. Maybe YOU could help me out? That would be awesome!</p>