How to throttle event stream using RX?

Question

I want to effectively throttle an event stream, so that my delegate is called when the first event is received but then not for 1 second if subsequent events are received. A

Answer 1

Have you tried the Throttle extension method?

From the docs:

Ignores values from an observable sequence which are followed by another value before dueTime

It's not quite clear to me whether that's going to do what you want or not - in that you want to ignore the following values rather than the first value... but I would expect it to be what you want. Give it a try :)

EDIT: Hmmm... no, I don't think Throttle is the right thing, after all. I believe I see what you want to do, but I can't see anything in the framework to do it. I may well have missed something though. Have you asked on the Rx forum? It may well be that if it's not there now, they'd be happy to add it :)

I suspect you could do it cunningly with SkipUntil and SelectMany somehow... but I think it should be in its own method.