http://ellislab.com/codeigniter/user-guide/database/active_record.html
Codeigniter has not a data grid view if that's yoru question, the best way (and the ony one i know) is :
$query = $this->db->get('mytable');
echo "<table>
<th>
<td>Title</td>
</th>
<tbody>
<tr>";
foreach ($query->result() as $row){
echo "<td>".$row->title."</td>";
}
echo " </tr>
</tbody>
</table>";