private static INotifyCollectionChanged getSource(IReadScalar <INotifyCollectionChanged> sourceScalar) { return(sourceScalar.Casting <object>().Filtering(item => item is TResultItem)); }
private static INotifyCollectionChanged getSource(IReadScalar <INotifyCollectionChanged> sourceScalar) { return(sourceScalar.Casting <object>().Filtering(item => item is TResultItem)); }