TraversalRequest(FocusNavigationDirection) Construtor

  • Referência

Definição

Namespace:
System.Windows.Input
Assembly:
WindowsBase.dll

Inicializa uma nova instância da 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)

Parâmetros

focusNavigationDirection
FocusNavigationDirection

A direção pretendida da travessia do foco, como um valor da enumeração.

Exemplos

O exemplo a seguir cria uma TraversalRequest instância como entrada para uma FrameworkElement.MoveFocus chamada.

// 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

Aplica-se a

Confira também