TraversalRequest(FocusNavigationDirection) Konstruktor

Definition

Namespace:

System.Windows.Input

Assembly:

WindowsBase.dll

Initialisiert eine neue Instanz der TraversalRequest-Klasse.

public:
 TraversalRequest(System::Windows::Input::FocusNavigationDirection focusNavigationDirection);

public TraversalRequest (System.Windows.Input.FocusNavigationDirection focusNavigationDirection);

new System.Windows.Input.TraversalRequest : System.Windows.Input.FocusNavigationDirection -> System.Windows.Input.TraversalRequest

Public Sub New (focusNavigationDirection As FocusNavigationDirection)

Parameter

focusNavigationDirection

FocusNavigationDirection

Die vorgesehene Richtung des Fokusdurchlaufs als Wert der Enumeration.

Beispiele

Im folgenden Beispiel wird eine TraversalRequest instance als Eingabe für einen FrameworkElement.MoveFocus Aufruf erstellt.

// Creating a FocusNavigationDirection object and setting it to a
// local field that contains the direction selected.
FocusNavigationDirection focusDirection = _focusMoveValue;

// MoveFocus takes a TraveralReqest as its argument.
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);
}

' Creating a FocusNavigationDirection object and setting it to a
' local field that contains the direction selected.
Dim focusDirection As FocusNavigationDirection = _focusMoveValue

' MoveFocus takes a TraveralReqest as its argument.
Dim request As New TraversalRequest(focusDirection)

' Gets the element with keyboard focus.
Dim elementWithFocus As UIElement = TryCast(Keyboard.FocusedElement, UIElement)

' Change keyboard focus.
If elementWithFocus IsNot Nothing Then
    elementWithFocus.MoveFocus(request)
End If

Weitere Informationen

• MoveFocus(TraversalRequest)
• FocusNavigationDirection