WPF FocusNavigationDirection，MoveFocus和箭头键
|
我有一个简单的应用程序（一个带有6个按钮的网格-2行3行-用于测试），并且正在按以下方式处理左右箭头键
private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
{
FocusNavigationDirection focusDirection = new System.Windows.Input.FocusNavigationDirection();
switch (e.Key)
{
case Key.Left:
focusDirection = System.Windows.Input.FocusNavigationDirection.Left;
break;
case Key.Right:
focusDirection = System.Windows.Input.FocusNavigationDirection.Right;
break;
default:
break;
}
TraversalRequest request = new TraversalRequest(focusDirection);
// Gets the element with keyboard focus.
UIElement elementWithFocus = Keyboard.FocusedElement as UIElement;
// Change keyboard focus.
if (elementWithFocus != null)
{
elementWithFocus.MoveFocus(request);
}
}
没有找到相关结果
已邀请:
2 个回复
冕偷淮款
private void Window_OnPreviewKeyDown(object sender, KeyEventArgs e) { switch (e.Key) { case Key.Left: this.MoveFocus(FocusNavigationDirection.Previous); break; case Key.Right: this.MoveFocus(FocusNavigationDirection.Next); break; default: break; } } private void MoveFocus(FocusNavigationDirection direction) { var request = new TraversalRequest(direction); this.MoveFocus(request); }渐首洽陈染
（左）和（右）？ 与其他值相比，这可能会提供更可预测的行为。