In jQuery Datatables, how we define fixed value columns?

Question

With Jquery.datatables i've build a data table which loads data from server dynamically by Ajax in Json format. this is my code:

$('#MyTable').dataTable({
  'sAjaxSource': '/Accounting/Action/GetData',
  'bStateSave': false,
  'bProcessing': true,
  'bServerSide': true,
  'data': {
  },
  'lengthChange': true,
  'aoColumns': [
    {
      'mData': 'ActionID',
      'title': 'کد',
      'sClass': ''
    },
    {
      'mData': 'ActionTitle',
      'title': 'عنوان',
      'sClass': ''
    }
  ],
  'sPaginationType': 'bootstrap'
});

it generates :

ActionID | ActionTitle  
=========+=============
  1      |  Foo         
---------+-------------
  2      |  Bar         
---------+-------------
  3      |  Blah Blah   
---------|------------

Ok, but i want to add a more column with fixed value for all rows and i don't do this by adding column to Json data which server sends. for example i want to add MyFixedCol to MyGrid in client side :

ActionID | ActionTitle | MyFixedCol
=========+=============+===========
  1      |  Foo        | FIXEDVAL
---------+-------------+-----------
  2      |  Bar        | FIXEDVAL
---------+-------------+-----------
  3      |  Blah Blah  | FIXEDVAL
---------|-------------+-----------

How can i do it?

Answer 1

I found a trick and it worked for me. so i share here, maybe help someone :)

datatables has a createdRow call back which fires it when row created. then i add a <td> to ther related row and it runs for all rows:

'createdRow': function ( row, data, index ) {
    $(row).append($('<td>').html('FIXEDVAL'));
  }

so my code in the question has been completed:

$('#MyTable').dataTable({
  'sAjaxSource': '/Accounting/Action/GetData',
  'bStateSave': false,
  'bProcessing': true,
  'bServerSide': true,
  'data': {
  },
  'lengthChange': true,
  'aoColumns': [
    {
      'mData': 'ActionID',
      'title': 'کد',
      'sClass': ''
    },
    {
      'mData': 'ActionTitle',
      'title': 'عنوان',
      'sClass': ''
    }
  ],
  'sPaginationType': 'bootstrap',
  'createdRow': function ( row, data, index ) {
       $(row).append($('<td>').html('FIXEDVAL'));
  }
});