IncrementalLassoHitTester.SelectionChanged Событие

Определение

Пространство имен:

System.Windows.Ink

Сборка:

PresentationCore.dll

Происходит, когда путь лассо выделяет или снимает выделение рукописного фрагмента Stroke.

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 

Тип события

LassoSelectionChangedEventHandler

Примеры

В следующем примере показано, как динамически выбирать штрихи в пользовательском элементе управления. Полный пример см. в разделе "Практическое руководство. Выбор рукописного ввода из пользовательского элемента управления"

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