Microsoft.Windows.Controls.Ribbon.RibbonGallery.UnhookCommand C# (CSharp) Méthode

        private void UnhookCommand(ICommand command)
        {
            if (_canExecuteChangedHandler != null)
            {
                command.CanExecuteChanged -= _canExecuteChangedHandler;
                _canExecuteChangedHandler = null;
            }
            UpdateCanExecute();
        }