how to convert IEnumerable to IObservable?

Question

I\'m looking to convert an IEnumerable collection to an IObservable one without using Rx ToObservable() and ToEnumerable() methods.

Answer 1

Simple answer - use ToObservable. That's what it's for.

"Answering the actual question" answer - you can avoid using Subjects via Observable.Create:

void Main()
{
    var src = Enumerable.Range(0, 10);
    var observable = Observable.Create(obs =>
    {
        foreach(var item in src)
        {
            obs.OnNext(item);
        }
        return Disposable.Create(()=>{});
    });

    using(observable.Subscribe(Console.WriteLine))
    {
        Console.ReadLine();
    }
}

Output:

0
1
2
3
4
5
6
7
8
9