public static void DisposeItemsAndClear <T>(this BindingList <T> list) where T : IDisposable
{
foreach (var t in list)
{
t.Dispose();
}
list.DisposeItemsAndClear();
}
public static IDisposable Filter(this BindingList <Item> source, BindingList <Item> result, IObservable <Func <Item, bool> > filter, IScheduler observer)
{
// firstly selecting default values for source list and filter observable for getting result
var combinedList = Observable.Return(Unit.Default).Merge(source.RaiseListChangedEvents.WhenAnyValue(_ => Unit.Default)).Select(_ => source);
var combinedFilter = Observable.Return(new Func <Item, bool>(t => true)).Merge(filter);
var d0 = combinedList.CombineLatest(combinedFilter, (l, f) => l.Select(x => x.Filter(f)).Where(x => x != null))
.ObserveOn(observer)
.Subscribe(x =>
{
//
//using (result.SuppressChangeNotifications())
//{
//
//}
result.DisposeItemsAndClear();
result.AddRange(x);
});
return(new CompositeDisposable(d0));
}