'宣言 Public Function New( _ ByVal target As DependencyObject, _ ByVal oldValue As Object, _ ByVal newValue As Object, _ ByVal property As DependencyProperty, _ ByVal propertyDisplayName As String, _ ByVal targetDisplayName As String _ )
public DependencyPropertyChangeUndoUnit( DependencyObject target, object oldValue, object newValue, DependencyProperty property, string propertyDisplayName, string targetDisplayName )