wpf焦点移动

[wql_5470]

 UIElement.MoveFocus(new TraversalRequest(FocusNavigationDirection.Down));

向上跟向下的反应很慢，左跟右都不会，这个该怎么优化

[wql_5470]

引用 1 楼 duanzi_peng 的回复:

你再说什么？？

switch (e.Key)
                    {
                        case Key.Right:
                            {
                                element.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
                                break;
                            }
                        case Key.Left:
                            {
                                element.MoveFocus(new TraversalRequest(FocusNavigationDirection.Previous));
                                break;
                            }
                        case Key.Down:
                            {
                                element.MoveFocus(new TraversalRequest(FocusNavigationDirection.Down));
                                break;
                            }
                        case Key.Up:
                            {
                                element.MoveFocus(new TraversalRequest(FocusNavigationDirection.Up));
                                break;
                            }
                    }

UP跟Down的反应比较慢

[exception92]

你再说什么？？