public static ObservableNullableDecimalAverage Create(INotifyEnumerable <decimal?> source) { var observable = new ObservableNullableDecimalAverage(source); observable.Successors.SetDummy(); return(observable); }
public static INotifyValue <decimal?> CreateNullableDecimal <TSource>(this INotifyEnumerable <TSource> source, Expression <Func <TSource, decimal?> > predicate) { return(ObservableNullableDecimalAverage.Create(source.Select(predicate))); }