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TraversalRequest(FocusNavigationDirection) Constructeur

  • Référence

Définition

Espace de noms:
System.Windows.Input
Assembly:
WindowsBase.dll

Initialise une nouvelle instance de la classe TraversalRequest.

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)

Paramètres

focusNavigationDirection
FocusNavigationDirection

Direction prévue du parcours du focus, en tant que valeur de l'énumération.

Exemples

L’exemple suivant crée un TraversalRequest instance en tant qu’entrée pour un FrameworkElement.MoveFocus appel.

// 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

S’applique à

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