As we have learned earlier, there are more than 30 extension points in the WCF runtime, but the most common situation is to customize the extension of a behavior. Discussion of all WCF extension points is beyond the context of this book and from this point on, we will focus only on the behavior extension.
To extend a behavior,
DispatchOperation need to be extended on the service side and
ClientOperation need to be extended on the client side. This can be achieved by implementing corresponding interfaces such as
IClientMessageFormatter. These interfaces provide the necessary methods to allow parameters to be inspected, messages to be ...