public InteractiveCollectionViewModel(IEnumerable <T> enumerable, string childrenpath, IObservable <bool> ischecked, IObservable <bool> expand, System.Windows.Threading.Dispatcher dispatcher = null, Func <T, IConvertible> getkey = null, string title = null)
{
var xs = enumerable.Select
(s =>
{
var so = new ChildInteractiveObject <T>(s, childrenpath, ischecked, expand, getkey?.Invoke(s));
return(so);
}).ToList();
foreach (var so in xs)
{
this.ReactToChanges(so);
so.OnPropertyChangeWithSource <ChildInteractiveObject <T>, KeyValuePair <T, InteractionArgs> >(nameof(ChildInteractiveObject <T> .ChildChanged)).Subscribe(_ =>
{
childSubject.OnNext(_.Item2);
});
}
items = new ReadOnlyObservableCollection <IObject <T> >(new ObservableCollection <IObject <T> >(xs));
ischecked.DelaySubscription(TimeSpan.FromSeconds(0.5)).Take(1).Subscribe(_ =>
{
foreach (var x in xs)
{
x.IsChecked = _;
}
});
Title = title;
}
public InteractiveCollectionViewModel(IObservable <IChangeSet <T, R> > observable,
string childrenpath,
IObservable <bool> ischecked,
IObservable <bool> expand,
Func <T, IConvertible>?getkey = null,
string?title = null)
{
disposable = observable
.Transform(s =>
{
var so = new ChildInteractiveObject <T>(s, childrenpath, ischecked, expand, getkey?.Invoke(s));
so.OnPropertyChangeWithSource <ChildInteractiveObject <T>, KeyValuePair <T, InteractionArgs> >(nameof(ChildInteractiveObject <T> .ChildChanged)).Subscribe(_ =>
{
childSubject.OnNext(_.Item2);
});
this.ReactToChanges(so);
return((IObject <T>)so);
})
.Bind(out items)
.DisposeMany()
.Subscribe(
_ =>
{
foreach (var x in _.Select(a => new KeyValuePair <IObject <T>, ChangeReason>(a.Current, a.Reason)))
{
(Changes as Subject <KeyValuePair <IObject <T>, ChangeReason> >).OnNext(x);
}
},
ex => Console.WriteLine("Error in generic view model"),
() => Console.WriteLine("observable completed"));
ischecked.DelaySubscription(TimeSpan.FromSeconds(0.5)).Take(1).Subscribe(_ =>
{
foreach (var x in items)
{
(x as ChildInteractiveObject <T>).IsChecked = _;
}
});
Title = title;
}
