Question

When I use svcutil or some other proxy generator it creates appropriate classes in client. I wonder what is the best way to store this classes to avoid conflicts.

• In some other “Common” project and remove generated classes from proxy?
• Or just use original classes in service and theese duplicated in proxy?

Answer 1

There are two ways to handle the code for service and data contract classes WCF clients.

• Generate everything using svcutil.exe. Don’t have any kind of reference from your client project to the service assembly. Just use the classes generated by svcutil.
• Reference the assemblies containing the types directly. I sometimes use a separate assembly for my DTO classes, that is references from both the client and the server. When generating the client code with svcutil, use the /reference:<file path> option to tell svcutil to reuse the types from an existing assembly instead of regenerating them.

If you reference the origin assembly, without passing it with /reference to svcutil you’ll end up with a mess of conflicts. I guess that’s what happened to you.