html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var data = [

        {id: 1, name: 'Phase 1 - Strategic Plan', progressValue: 0.14, actualStart: '2000-02-24', actualEnd: '2000-02-27'},

        {id: 2, name: 'Self-Assessment', parent: 1, progressValue: 0.25, actualStart: '2000-02-24', actualEnd: '2000-02-29'},

        {id: 3, name: 'Define business vision', parent: 2, progressValue: 0, actualStart: '2000-02-24T24:00', actualEnd: '2000-02-25T09:00', connectTo: 4, connectorType: 'finish-start'},

        {id: 4, name: 'Identify available skills, information and support', parent: 2, progressValue: 0, actualStart: '2000-02-26T00:00', actualEnd: '2000-02-26T09:00', connectTo: 5, connectorType: 'finish-start'},

        {id: 5, name: 'Decide whether to proceed', parent: 2, progressValue: 0, actualStart: '2000-02-27', actualEnd: '2000-02-28T08:00', connectTo: 6, connectorType: 'finish-start'},

        {id: 6, name: 'Define the Opportunity', parent: 1, progressValue: 0.27, actualStart: '2000-02-28T08:00', actualEnd: '2000-02-29'},

        {id: 7, name: 'Research the market and competition', parent: 6, progressValue: 0, actualStart: '2000-02-26T08:00', actualEnd: '2000-02-27'}

    ];

​

    var treeData = anychart.data.tree(data, 'as-table');

​

    var item = treeData.search('id', '4');

​

    var parent = item.getParent();

​

    // Get index.

    var index = parent.indexOfChild(item);

​

    item.set('name', item.get('name') + ' - index' + index);

​

    var chart = anychart.ganttProject();

    chart.data(treeData);

    chart.title('Get and use index');

    chart.container('container');

    chart.draw();

    chart.fitAll();

});