Can I provide a data member in WCF ServiceContract?

Question

In a WCF service, is it possible to include a data item in a ServiceContract definition? To do something like this:

namespace My.Service.Contracts
{
    [ServiceContract]
    public interface IMyService
    {
        [OperationContract]
        ResultObject[] Search(SearchParams searchParams);

        [DataMember]
        MyCustomClass MyDataMember { get; }
    }
}

Is it possible to expose a MyDataMemberServiceContract from the inside? The scenario will look like this: The next class that implements the service contract has data about the members that I would like to open using a public field / property. Something similar to this: I am trying to open a field / property in a class that implements a service contract. For example:

public class MyService : IMyService
{
    private MyCustomClass _datafield;

    ResultObject[] Search(SearchParams searchParams){
        //Do the search
    }

    MyCustomClass MyDataMember {
      get: { return _dataField; }
    }
}

Answer 1

Can a data element be included in a ServiceContract definition?

, "" , [DataMember] , WCF .

, :

[ServiceContract]
public interface IMyService
{
    [OperationContract]
    ResultObject[] Search(SearchParams searchParams);

    [DataMember]
    MyCustomClass MyDataMember { get; }
}

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MSDN :

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Answer 2

DataMember.

msdn.

[AttributeUsageAttribute(AttributeTargets.Property|AttributeTargets.Field, Inherited = false,AllowMultiple = false)]
public sealed class DataMemberAttribute : Attribute

, DataMember, .

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