Can I have two different clients listening to the same WCF callback and have them both receive the same data without having to do the processing twice?
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Can I have two different clients listening to the same WCF callback and have them both receive the same data without having to do the processing twice?
Not really – at least not directly. What you’re describing sounds a lot like the publish/subscribe pattern. A WCF service basically services one client and one client only, at any given time.
There are ways to do this in WCF 3.5 and better ones in WCF 4.0 – with or without Windows Azure’s .NET Services. There are also other tools and support for the publish/subscribe pattern.
Check out things like:
If you Google or Bing for "WCF Publish Subscribe", you’ll get a lot more hits – but those three should really get you started, I think.