ContentElement.PredictFocus(FocusNavigationDirection) 方法

定义

命名空间:
System.Windows
程序集:
PresentationCore.dll

在派生类中重写时，返回将接收指定焦点遍历方向的焦点的元素，而无需实际将焦点移动到该元素。

public:
 virtual System::Windows::DependencyObject ^ PredictFocus(System::Windows::Input::FocusNavigationDirection direction);
public virtual System.Windows.DependencyObject PredictFocus(System.Windows.Input.FocusNavigationDirection direction);
abstract member PredictFocus : System.Windows.Input.FocusNavigationDirection -> System.Windows.DependencyObject
override this.PredictFocus : System.Windows.Input.FocusNavigationDirection -> System.Windows.DependencyObject
Public Overridable Function PredictFocus (direction As FocusNavigationDirection) As DependencyObject

参数

direction
FocusNavigationDirection

请求的焦点遍历的方向。

返回

DependencyObject

如果 MoveFocus(TraversalRequest) 实际调用了焦点，则会收到焦点的元素。

注解

此类中此方法的默认实现不完整，并且始终返回 null。

适用于

另请参阅