TaskChildren

<script>
  var dataSource = new kendo.data.GanttDataSource({
    data: [
      {
        id: 1,
        orderId: 0,
        parentId: null,
        title: "Task1",
        summary: true,
        start: new Date("2014/6/17 9:00"),
        end: new Date("2014/6/17 11:00")
      },
      {
        id: 2,
        orderId: 0,
        parentId: 1,
        title: "Task2",
        summary: true,
        start: new Date("2014/6/17 9:00"),
        end: new Date("2014/6/17 11:00")
      },
      {
        id: 3,
        orderId: 0,
        parentId: 2,
        title: "Task3",
        start: new Date("2014/6/17 9:00"),
        end: new Date("2014/6/17 11:00")
      }
    ]
  });

  dataSource.fetch();

  // returns a list with all child tasks of Task1.
  var childTasks = dataSource.taskChildren(dataSource.at(0));
</script>

<script>
  var dataSource = new kendo.data.GanttDataSource({
    data: [
      {
        id: 1,
        orderId: 0,
        parentId: null,
        title: "Task1",
        summary: true,
        start: new Date("2014/6/17 9:00"),
        end: new Date("2014/6/17 11:00")
      },
      {
        id: 2,
        orderId: 0,
        parentId: 1,
        title: "Task2",
        start: new Date("2014/6/17 9:00"),
        end: new Date("2014/6/17 11:00")
      }
    ]
  });

  dataSource.fetch();

  // returns a list with all root-level tasks.
  var childTasks = dataSource.taskChildren();
</script>