WCF: DataContract + ServiceContract

Hi,

It's not possible to create a class with the [ServiceContract] attribute that have some property with the [DataMember] attribute?

It's not possible to create a class with the [DataContract] attribute that have some function with the [OperationContract] attribute?

It's not possible to create a class with the [DataContract] and [ServiceContract] attributes?

With this model I need to divide functions and datas. How can i adapt your SOA model to my OOP mind?

Thank you.

[ServiceContract(SessionMode =SessionMode.Required)]

publicclassDoubleValidator

{

private Validators.DoubleValidator m_val;

[OperationContract]

publicvoidConstructor(string val)

{

m_val =new Validators.DoubleValidator(val);

}

[OperationContract]

publicbool IsValid()

{

return true;

}

}

And not:

[ServiceContract(SessionMode =SessionMode.Required)]

publicclassDoubleValidator

{

private Alexey.Data.Validators.DoubleValidator m_val;

[OperationContract]

publicDoubleValidator(string val)

{

m_val =new Validators.DoubleValidator(val);

}

[DataMember]

publicboolIsValid

{

get{ return true; }

}

}