API

You can access the tree API by using the treeModel attribute on the element:

JavaScript

<Tree #tree [nodes]="nodes"></Tree>

  <button (click)="tree.treeModel.focusNextNode()">next node</button>
  <button (click)="tree.treeModel.focusPreviousNode()">previous node</button>
  <button (click)="tree.treeModel.focusDrillDown()">drill down</button>
  <button (click)="tree.treeModel.focusDrillUp()">drill up</button>

Or by accessing the treeNode that is passed through Events.

Checkout the Typedoc documentation of the ITreeModel and ITreeNode interfaces.