public static ToDoListEditorProductSubWindow Open(ToDoListProductView _productView, ToDoProduct todoProduct = null,
                                                          string name = "Product Editor")
        {
            var window = Open <ToDoListEditorProductSubWindow>(name).Init(_productView, todoProduct);

            instance = window;
            window.Show();
            return(window);
        }
 private void OnDisable()
 {
     instance = null;
 }