InkCanvas.StrokeErasing Event   
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs just before a user erases a stroke.
public:
 event System::Windows::Controls::InkCanvasStrokeErasingEventHandler ^ StrokeErasing;
	public event System.Windows.Controls.InkCanvasStrokeErasingEventHandler StrokeErasing;
	member this.StrokeErasing : System.Windows.Controls.InkCanvasStrokeErasingEventHandler 
	Public Custom Event StrokeErasing As InkCanvasStrokeErasingEventHandler 
	Public Event StrokeErasing As InkCanvasStrokeErasingEventHandler 
	Event Type
Examples
The following example prevents any strokes rendered as highlighters from being erased. The example assumes that the InkCanvas is connected to the event handler.
void inkCanvas1_StrokeErasing(object sender, InkCanvasStrokeErasingEventArgs e)
{
    if (e.Stroke.DrawingAttributes.IsHighlighter)
    {
        e.Cancel = true;
    }
}
Private Sub inkCanvas1_StrokeErasing(ByVal sender As Object, _
                             ByVal e As InkCanvasStrokeErasingEventArgs)
    If (e.Stroke.DrawingAttributes.IsHighlighter) Then
        e.Cancel = True
    End If
End Sub
	Remarks
Handle this event when you want to check whether a stroke should be erased. Set the Cancel property to true if you want to prevent the stroke from being erased. You can use this technique when the EditingMode or EditingModeInverted property is set to EraseByStroke or EraseByPoint.