public void OnItemClicked(BookShelfViewModels.IItemViewModel vm)
 {
     if (ItemClicked != null)
         ItemClicked(this, new ItemClickedEventArgs() { SelectedItem = vm });
 }
 private void SetBookShelfModel(BookShelfViewModels.BookViewModel ViewModel)
 {
     (this.DataContext as BookFixed2ViewModels.BookViewModel).AsBookShelfBook = ViewModel;
 }