Public Shared Sub AddPreviewCanExecuteHandler( _
   ByVal element As DependencyObject, _
   ByVal handler As CanExecuteRoutedEventHandler _
) 

Dim element As DependencyObject
Dim handler As CanExecuteRoutedEventHandler
 
CommandManager.AddPreviewCanExecuteHandler(element, handler)

public static void AddPreviewCanExecuteHandler( 
   DependencyObject element,
   CanExecuteRoutedEventHandler handler
)

public procedure AddPreviewCanExecuteHandler( 
    element: DependencyObject;
    handler: CanExecuteRoutedEventHandler
); static; 

public static function AddPreviewCanExecuteHandler( 
   element : DependencyObject,
   handler : CanExecuteRoutedEventHandler
);

public: static void AddPreviewCanExecuteHandler( 
   DependencyObject* element,
   CanExecuteRoutedEventHandler* handler
) 

public:
static void AddPreviewCanExecuteHandler( 
   DependencyObject^ element,
   CanExecuteRoutedEventHandler^ handler
)