public ProfileCollectionVirtualise1()
{
profiles = this.WhenAnyValue(a => a.Value).Select(GetProfiles).ToProperty(this, a => a.Profiles);
IList <Profile> GetProfiles(int i)
{
var ProfilePool = ProfileFactory.BuildPool();
return(DataVirtualizingCollectionBuilder
.Build <Profile>(i, RxApp.MainThreadScheduler)
.NonPreloading()
.Hoarding()
.NonTaskBasedFetchers(
(offset, pageSize) =>
{
Console.WriteLine($"{nameof(Profiles)}: Loading page with offset {offset}");
var range = Enumerable.Range(offset, pageSize).Select(i => ProfilePool[i % ProfilePool.Count]).ToArray();
return range;
},
() =>
{
Console.WriteLine($"{nameof(Profiles)}: Loading count");
return 420420;
})
.AsyncIndexAccess((_, __) => new Profile()));
}
}
public ProfileCollectionTimed()
{
var pool = ProfileFactory.BuildPool();
_ = Observable.Interval(TimeSpan.FromSeconds(_speed))
.ObserveOnDispatcher()
.Select(a => pool.Random())
.ToObservableChangeSet()
.Sort(new comparer())
.Bind(out profiles).Subscribe();
}