InkOverlay.SelectionChanging - событие

Статья
11/04/2008

Обновлен: Ноябрь 2007

Occurs when the selection of ink within the control is about to change, such as through alterations to the user interface, cut-and-paste procedures, or the Selection property.

Пространство имен: Microsoft.Ink
Сборка: Microsoft.Ink (в Microsoft.Ink.dll)

Синтаксис

'Декларация
Public Event SelectionChanging As InkOverlaySelectionChangingEventHandler
'Применение
Dim instance As InkOverlay
Dim handler As InkOverlaySelectionChangingEventHandler

AddHandler instance.SelectionChanging, handler

public event InkOverlaySelectionChangingEventHandler SelectionChanging

public:
 event InkOverlaySelectionChangingEventHandler^ SelectionChanging {
    void add (InkOverlaySelectionChangingEventHandler^ value);
    void remove (InkOverlaySelectionChangingEventHandler^ value);
}

/** @event */
public void add_SelectionChanging (InkOverlaySelectionChangingEventHandler value)
/** @event */
public void remove_SelectionChanging (InkOverlaySelectionChangingEventHandler value)

JScript не поддерживает события.

Заметки

The event handler receives an argument of type InkOverlaySelectionChangingEventArgs containing data about this event.

You can handle this event to change the default selection behavior of the InkOverlay object.

When you create an InkOverlaySelectionChangingEventHandler delegate, you identify the method that handles the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For performance reasons, the default event interest is off but is turned on automatically if you add an event handler.

Примеры

In this example, the SelectionChanging event handler prohibits the selection of multiple strokes by removing all but one Stroke object from the current selection.

Private Sub mInkObject_SelectionChanging(ByVal sender As Object, ByVal e As InkOverlaySelectionChangingEventArgs)
    While e.NewSelection.Count > 1
        e.NewSelection.RemoveAt(e.NewSelection.Count - 1)
    End While
End Sub

private void mInkObject_SelectionChanging(object sender, InkOverlaySelectionChangingEventArgs e)
{
    while (e.NewSelection.Count > 1)
    {
        e.NewSelection.RemoveAt(e.NewSelection.Count - 1);
    }
}

Платформы

Windows Vista

Среды .NET Framework и .NET Compact Framework поддерживают не все версии каждой платформы. Поддерживаемые версии перечислены в разделе Требования к системе для .NET Framework.