c# - How To Use Interface as DataContract in WCF -

i need invoke webservice operations using standard wsdl, data objects must different in client , in server.

using interfaces data objects in common library, making proxy classes in client , in server.

then, i'm declaring operation contract using interface, wcf don't recognize it.

i yet tried use datacontractserializerbehavior , set knowntypes, no success yet.

someone can help-me? i've attached complete solution more details.

public interface thing {    guid id {get;set;}    string name {get;set;}    thing anotherthing {get;set;} }  [datacontract] public class thingatserver: bsondocument, thing // mongodb persistence {     [datamember]    guid id {get;set;}    //...  }  [datacontract] public class thingatclient: thing, inotifypropertychanged // wpf bindings {     [datamember]    guid id {get;set;}    //...  }  [servicecontract] public interface myservice {   [operationcontract]   thing dosomething(thing input); } 

click here see sample project on github testcases

i've created wcf service contract:

[operationcontract] compositetypeserver getdatausingdatacontract( compositetypeserver composite ); 

my compositetypeserver looks this:

[datacontract( namespace = "http://enes.com/" )] public class compositetypeserver {     [datamember]     public bool boolvalue { get; set; }      [datamember]     public string stringvalue { get; set; } } 

then i've created client project type compositetypeclient:

[datacontract( namespace = "http://enes.com/" )] public class compositetypeclient {     [datamember]     public bool boolvalue { get; set; }      [datamember]     public string stringvalue { get; set; } } 

then i've added reference service , selected reuse types. worked charm. able use compositetypeclient on client side.

so trick specify namespace datacontract match on both client , service.

[datacontract( namespace = "http://enes.com/" )] 

ps. can provide full working vs solution on request.