Function toggleDescendants

src/cdk/tree/control/base-tree-control.ts:72–76

Toggles a subtree rooted at `node` recursively.

(dataNode: T)

  /** Toggles a subtree rooted at `node` recursively. */
  toggleDescendants(dataNode: T): void {
    this.expansionModel.isSelected(this._trackByValue(dataNode))
      ? this.collapseDescendants(dataNode)
      : this.expandDescendants(dataNode);
  }

  /** Collapse all dataNodes in the tree. */
  collapseAll(): void {