public static IObservableList <T> Where <T>(this IObservableList <T> self, Func <T, IObservable <bool> > predicate)
{
return(self
.Select(item => predicate(item).Select(p => new { Item = item, Pred = p }))
.Switch()
.Where(x => x.Pred)
.Select(x => x.Item));
}
public static IObservableList <TResult> SelectMany <TSource, TResult>(
this IObservableList <TSource> self,
Func <TSource, IObservableList <TResult> > selector)
{
return(self.Select(selector).Join());
}
public static IObservableList <TResult> Select <TSource, TResult>(
this IObservableList <TSource> self,
Func <TSource, TResult> selector)
{
return(self.Select(change => change.Select(selector)).UnsafeAsObservableList());
}