Unable to serialize while using Encoding as DataMember in WCF services

Hi,

In WCF services in Datacontract ,I am using Encoding as datamember . This is my service code .

[ServiceContract]
public interface IService1
{
[OperationContract]
void GetData(CompositeType compositeType);
}
[DataContract]
public class CompositeType
{
[DataMember]
public Encoding MessageEncoding
{
get;
set;
}
}
}

Client code :

EndpointAddress addr = new EndpointAddress("net.pipe://localhost/Service1");
ChannelFactory chn = new ChannelFactory(netNamedPipeBinding, addr);
service1 = chn.CreateChannel();CompositeType wcfFor = new CompositeType
{
MessageEncoding = Encoding.UTF8,
};
service1.GetData(wcfFor);

When I tried to hit the service from client ,I am getting below exception

There was an error while trying to serialize parameter http://tempuri.org/:compositeType. The InnerException message was 'Type 'System.Text.UTF8Encoding' with data contract name 'UTF8Encoding:http://schemas.datacontract.org/2004/07/System.Text' is not expected. Consider using a DataContractResolver if you are using DataContractSerializer or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to the serializer.'. Please see InnerException for more details.

I have also tried by using knowntype attribute and datacontract resolver . Still I am facing this same issue

Can we use Encoding as datamember in WCF service?