Function toggle

src/cdk/tree/control/base-tree-control.ts:52–54

Toggles one single data node's expanded/collapsed state.

(dataNode: T)

  /** Toggles one single data node's expanded/collapsed state. */
  toggle(dataNode: T): void {
    this.expansionModel.toggle(this._trackByValue(dataNode));
  }

  /** Expands one single data node. */
  expand(dataNode: T): void {