Function _updateTreeValidity

packages/forms/src/model/abstract_model.ts:1430–1433

@internal

(opts: {emitEvent?: boolean} = {emitEvent: true})

  /** @internal */
  _updateTreeValidity(opts: {emitEvent?: boolean} = {emitEvent: true}): void {
    this._forEachChild((ctrl: AbstractControl) => ctrl._updateTreeValidity(opts));
    this.updateValueAndValidity({onlySelf: true, emitEvent: opts.emitEvent});
  }

  private _setInitialStatus() {
    this.status = this._allControlsDisabled() ? DISABLED : VALID;