TypeError: data is undefined

[LucieWallee]

Hi,
I am trying to reproduce the example that you given.
I have this code :
`

<script type="text/javascript" src='{{ asset('js/DataTables/media/js/jquery.js') }}'></script>

<script type="text/javascript" src='{{ asset('js/DataTables/media/js/jquery.dataTables.min.js') }}'></script>

<script type="text/javascript" src='{{ asset('js/dataTables.treeGrid/dataTables.treeGrid.js') }}'></script>

<script>
    var columns = [
        {
            title: '',
            target: 0,
            className: 'treegrid-control',
            data: function (item) {
                if (item.children) {
                    return '<span>+</span>';
                }
                return '';
            }
        },
        {
            title: 'Name',
            target: 1,
            data: function (item) {
                return item.name;
            }
        },
        {
            title: 'Position',
            target: 2,
            data: function (item) {
                return item.position;
            }
        },
        {
            title: 'Office',
            target: 3,
            data: function (item) {
                return item.office;
            }
        },
        {
            title: 'Extn.',
            target: 4,
            data: function (item) {
                return item.extn;
            }
        },
        {
            title: 'Start date',
            target: 5,
            data: function (item) {
                return item.start;
            }
        },
        {
            title: 'Salary',
            target: 6,
            data: function (item) {
                return item.salary;
            }
        }
    ];

    $('#example').DataTable({
        'columns': columns,
        'ajax': "{{ asset('js/arrays.json') }}",
        'treeGrid': {
            'left': 10,
            'expandIcon': '<span>+</span>',
            'collapseIcon': '<span>-</span>'
        }
    });
</script>

`

And my file arrays.json contains is ine the same format of your example.

So in my dispplay I have that :

My problem is, when I click on "+" or "-" I have this message in my console :

" [Afficher/Masquer les détails du message.] TypeError: data is undefined[En savoir plus] dataTables.treeGrid.js:140:1
fnConstruct/<
http://localhost/gestion_MKT/web/js/dataTables.treeGrid/dataTables.treeGrid.js:140:1
dispatch
http://localhost/gestion_MKT/web/js/DataTables/media/js/jquery.js:3:12392
add/r.handle
http://localhost/gestion_MKT/web/js/DataTables/media/js/jquery.js:3:9156
"

I hope you cna help me to understand why it doesn't work.

Thank you.

[homfen]

I have fixed it.