async void OnLoad(object sender, RoutedEventArgs e) { using (var inputFileStream = await FileDialogExtensions.PickFileForReadAsync(".isf")) { await this.inkPresenter.StrokeContainer.LoadAsync(inputFileStream); } }
async void OnSave(object sender, RoutedEventArgs e) { using (var outputFileStream = await FileDialogExtensions.PickFileForSaveAsync( "ink file", ".isf", "myInkFile")) { await this.inkPresenter.StrokeContainer.SaveAsync(outputFileStream); } }