private void RemoveAdorner()
{
if (currentAdorner != null)
{
if (currentAdorner.ElementContainerControl != null && currentAdorner.ElementContainerControl.Element != null)
{
currentAdorner.ElementContainerControl.Element.Deleted -= AdornedElementDeleted;
}
currentAdorner.Dispose();
currentAdorner = null;
}
}