jqxGrid with ComboBox, How to select an item in combobox ?

OK

by mogador

HTML

<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<script src=" http://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<div id="jqxgrid"></div>

<button id="bt_fill">fill grid</button>

JavaScript

var aProfesseurs = [];
var aDataGrid = [];

  // fill array combobox
var  aLine = [];
  aLine['idProfesseur'] = 0;
  aLine['nomPrenom'] = 'James A';
  aProfesseurs.push(aLine);

  aLine = [];
  aLine['idProfesseur'] = 1;
  aLine['nomPrenom'] = 'John B';

  aProfesseurs.push(aLine);

  // fill array Grid
  aLine = [];
  aLine['idProfesseur'] = 1;
  aLine['groupe'] = 'Group A';
  aLine['idGroupe'] = '0';
  aDataGrid.push(aLine);

  aLine = [];
  aLine['idProfesseur'] = 0;
  aLine['groupe'] = 'Group B';
  aLine['idGroupe'] = '1';
  aDataGrid.push(aLine);


var oSourceComboBox = {
  localdata: aProfesseurs,
  datatype: 'array',
  datafields: [{
      name: 'idProfesseur',
      type: 'int'
    },
    {
      name: 'nomPrenom',
      type: 'string'
    }
  ]
};

var oAdapterComboBox = new $.jqx.dataAdapter(oSourceComboBox);

var oSourceGrid = {
  localdata: aDataGrid,
  datatype: 'array',
  datafields: [{
      name: 'idProfesseur',
      type: 'int',
      values: {
        source: oAdapterComboBox,
        value: 'idProfesseur',
        name: 'nomPrenom'
      }
    },
    {
      name: 'nomPrenom',
      type: 'string'
    },
    {
      name: 'libelleGroupe',
      type: 'string'
    },
    {
      name: 'idGroupe',
      type: 'int'
    }
  ],
  id: 'idGroupe'
};

var oAdapter = new $.jqx.dataAdapter(oSourceGrid);

$('#jqxgrid').jqxGrid({
  source: oAdapter,
  selectionmode: 'singlecell',
  editable: true,
  editmode: "click",
  columnsresize: true,
  sortable: false,
  sortmode: 'many',
  // autoheight: true,
  // autorowheight: true,
  columns: [{
      text: 'Prof',
      editable: true,
      datafield: 'idProfesseur',
      displayfield: 'nomPrenom',
      minwidth: 120,
      width: '20%',
      columntype: 'combobox',
      createeditor: function(row, column, editor) {
        editor.jqxComboBox({
          autoOpen: true,
          searchMode: 'none',
          animationType: 'none',
          source: oAdapterComboBox,
          valueMember:...