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<WCF Tutorial - Basic Interprocess Communication ⁄ >




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What the heck is WCF? For a long time, I couldn't tell you exactly what it was. And honestly, I still don't think I can. WCF is such a broad concept that it's hard to boil down into a concise explanation. When I finally started reading about it, and getting beyond the concepts, things started to clear up. That's what today's tutorial is about - cutting through all the concepts and just use WCF to build a basic server and a basic client.

At its core, WCF is a mechanism that facilitates communication between processes - either on the same machine or separate machines. Part of the confusion I had when trying to understand WCF was the almost limitless ways WCF can accomplish this. We're not going to worry about all of that though. We're going to strip out everything except the bare essentials required to get a client/server system up and running - and it's actually very little code.

What we're building today will look a lot like a simple remote procedure call. We'll be building a server that exposes a function that can be called by a client. Just to show how easy it is to change the transport layer, the client will connect to the server through two different mechanisms - http and named pipe.

The first thing we need to do is define what the client will have access to. We do this by defining an interface in C# and giving it a few attributes for WCF. The server will create a class that implements the interface to actually do the work. The client will just be provided the interface so it knows which functions are available.



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http://blog.paranoidferret.com/index.php/2008/11/19/wcf-tutorial-basic...




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