IncrementalLassoHitTester.SelectionChanged Evento
Definizione
Importante
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Si verifica quando il tracciato del lazo seleziona o deseleziona un oggetto Stroke di un input penna.
public:
event System::Windows::Ink::LassoSelectionChangedEventHandler ^ SelectionChanged;
public event System.Windows.Ink.LassoSelectionChangedEventHandler SelectionChanged;
member this.SelectionChanged : System.Windows.Ink.LassoSelectionChangedEventHandler
Public Custom Event SelectionChanged As LassoSelectionChangedEventHandler
Public Event SelectionChanged As LassoSelectionChangedEventHandler
Tipo evento
Esempio
Nell'esempio seguente viene illustrato come selezionare dinamicamente i tratti in un controllo personalizzato. Per l'intero esempio, vedere Procedura: Selezionare input penna da un controllo personalizzato
void selectionTester_SelectionChanged(object sender,
LassoSelectionChangedEventArgs args)
{
// Change the color of all selected strokes to red.
foreach (Stroke selectedStroke in args.SelectedStrokes)
{
selectedStroke.DrawingAttributes.Color = Colors.Red;
selectedStrokes.Add(selectedStroke);
}
// Change the color of all unselected strokes to
// their original color.
foreach (Stroke unselectedStroke in args.DeselectedStrokes)
{
unselectedStroke.DrawingAttributes.Color = inkDA.Color;
selectedStrokes.Remove(unselectedStroke);
}
}
Private Sub selectionTester_SelectionChanged(ByVal sender As Object, _
ByVal args As LassoSelectionChangedEventArgs)
' Change the color of all selected strokes to red.
For Each selectedStroke As Stroke In args.SelectedStrokes
selectedStroke.DrawingAttributes.Color = Colors.Red
selectedStrokes.Add(selectedStroke)
Next selectedStroke
' Change the color of all unselected strokes to
' their original color.
For Each unselectedStroke As Stroke In args.DeselectedStrokes
unselectedStroke.DrawingAttributes.Color = inkDA.Color
selectedStrokes.Remove(unselectedStroke)
Next unselectedStroke
End Sub