TraversalRequest(FocusNavigationDirection) Constructor

  • Referencia

Definición

Espacio de nombres:
System.Windows.Input
Ensamblado:
WindowsBase.dll

Inicializa una nueva instancia de la clase 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)

Parámetros

focusNavigationDirection
FocusNavigationDirection

Dirección del cambio secuencial del foco, como un valor de enumeración.

Ejemplos

En el ejemplo siguiente se crea una TraversalRequest instancia como entrada para una FrameworkElement.MoveFocus llamada.

// 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

Se aplica a

Consulte también