How to dispose of old objects created by binding selector?

[kroimon]

Hi,

I am using OneWayBind to bind a view model collection to the view, and transform the view models to views in the selector function:

        public Chart()
        {
            this.WhenActivated(d =>
            {
                d(this.OneWayBind(ViewModel, vm => vm.XAxes, v => v.ChartSurface.XAxes, ToAxesCollection));
                d(this.OneWayBind(ViewModel, vm => vm.YAxes, v => v.ChartSurface.YAxes, ToAxesCollection));
            });
        }

        private AxisCollection ToAxesCollection(ReadOnlyObservableCollection<IAxisViewModel> axes)
        {
            var axesCollection = new AxisCollectionExtended();
            axes.ToObservableChangeSet()
                .Transform(ToAxis)
                .Adapt(new ObservableCollectionAdaptor<IAxis>(axesCollection))
                .Subscribe(); // TODO: dispose subscription
            return axesCollection;
        }

        private IAxis ToAxis(IAxisViewModel vm)
        {
            // [...]
        }

What is the best way of disposing the subscription object created in the selector (see TODO comment) when it is no longer required because the binding source updated or the binding was disposed?

Thanks a lot for your help!