data.setField(i, "name", "Truck " + i);
data.setField(i, "capacity", 100 * Math.round(Math.random() * 20));
data.setField(i, "store", (Math.random() > 0.1) ? "main" : "spare");
DataTable.Action action = new DataTable.Action("edit");
data.addAction(i, action);
action = new DataTable.Action("delete");
data.addAction(i, action);
DataTable childTable = new DataTable();
for (int j = 0; j < 5; j++) {