TraversalRequest(FocusNavigationDirection) Konstruktor

Definition

Namnområde:
System.Windows.Input
Sammansättning:
WindowsBase.dll

Initierar en ny instans av TraversalRequest klassen.

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)

Parametrar

focusNavigationDirection
FocusNavigationDirection

Den avsedda riktningen för fokusbläddring, som ett värde för uppräkningen.

Exempel

I följande exempel skapas en TraversalRequest instans som indata för ett FrameworkElement.MoveFocus anrop.

// 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

Gäller för

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