Question

I’m trying to tame a keyboard triggered event that without throttling would fire with a very high frequency. The code below works but it also delays the first invocation of GlobalCopy by the throttling timespan. Is there a way to get the first sample without delay?

observableGlobalCopy = Observable
  .FromEventPattern<EventHandler, EventArgs>(h => this.GlobalCopy += h, h => this.GlobalCopy -= h);

observableGlobalCopy
    .SubscribeOnDispatcher()
    .Throttle(GlobalEventThottle)
    .Subscribe(x => GlobalCopyHandler());

Answer 1

You could try something like this:

var observableGlobalCopy2 = observableGlobalCopy
    .Window(() => Observable.Timer(TimeSpan.FromSeconds(1.0)))
    .Select(_ => _.Take(1))
    .Merge();