/// <summary> /// Invokes the <see cref="IHandleNavigatedFrom.OnNavigatedFromAsync"/> for the current <see cref="FrameworkElement.DataContext"/>. /// </summary> /// <param name="handler">The <see cref="IHandleNavigatedFrom"/> instance.</param> /// <param name="e">An object that contains the event data.</param> /// <returns>The <see cref="Task"/> object representing the asynchronous operation.</returns> protected virtual Task InvokeHandlerOnNavigatedFromAsync(IHandleNavigatedFrom handler, NavigationServiceNavigationEventArgs e) => handler.OnNavigatedFromAsync(e);