Catel.MVVM.Providers.UserControlLogic.UnsubscribeFromParentViewModel C# (CSharp) 메소드

        private void UnsubscribeFromParentViewModel()
        {
            if (_parentViewModel != null)
            {
                UnregisterViewModelAsChild();

                _parentViewModel.SavingAsync -= OnParentViewModelSavingAsync;
                _parentViewModel.CancelingAsync -= OnParentViewModelCancelingAsync;
                _parentViewModel.ClosingAsync -= OnParentViewModelClosingAsync;

                _parentViewModel = null;

                Log.Debug("Unsubscribed from parent view model");
            }
        }