Advantages of .NET Rx over classic events?

Question

.NET 4.0 beta 2 has introduced the IObservable and IObserver interfaces.

What are the advantages compared to classic .NET events? Doesn\'t this solve the same problem?<

Answer 1

I'm not sure of the advantages, but I see the following differences with classic .NET events:

error notifications

Classic events would require a separate event for this, or an EventArgs class with an Error property that needs to be checked.

end-of-notifications notification

Classic events would require a separate event for this or an EventArgs class with a Final property that needs to be checked.