Method addFormGroup

packages/forms/src/directives/ng_form.ts:271–279

* @description * Adds a new `NgModelGroup` directive instance to the form. * * @param dir The `NgModelGroup` directive instance.

(dir: NgModelGroup)

   * @param dir The `NgModelGroup` directive instance.
   */
  addFormGroup(dir: NgModelGroup): void {
    resolvedPromise.then(() => {
      const container = this._findContainer(dir.path);
      const group = new FormGroup({});
      setUpFormContainer(group, dir);
      container.registerControl(dir.name, group);
      group.updateValueAndValidity({emitEvent: false});
    });
  }

  /**
   * @description