How to trigger redraw of Xamarin BindableLayout

Question

I have a BindableLayout that uses a List<PricingLevel> as the datasource. One of the columns in the resulting layout uses a converter to derive a calculated result based on a unit price in the view model and the PricingLevel property of the datasource.

public bool IsTaxInclusive { get; set; }
public decimal UnitPrice { get; set; }
public List<PricingLevel> PricingLevels { get; set; }

If the IsTaxInclusive flag is switched I need to update the calculated results (note PropertyChanged events are raised). But because the PricingLevels don't change, I'm not sure how to trigger the update. At the moment I just refresh the PricingLevels list which works but is not ideal. Is there a simple way to force the update?

Answer 1

So the fix was simple. Rather than refresh the entire list, I used a FastObservableCollection and called its RaiseCollectionChanged() method.

public FastObservableCollection<PricingLevel> PricingLevels { get; set; }
...
PricingLevels.RaiseCollectionChanged();