如何在WCF中将soap标头添加到自动生成的代理中？

Question

So far I was doing proxies with the manual way and this is how I handled headers:

public abstract class UserClientBase<T> : ClientBase<T> where T : class
{
    public UserClientBase()
    {
        string userName = Thread.CurrentPrincipal.Identity.Name;
        MessageHeader<string> header = new MessageHeader<string>(userName);

        OperationContextScope contextScope =
                        new OperationContextScope(InnerChannel);

        OperationContext.Current.OutgoingMessageHeaders.Add(
                                  header.GetUntypedHeader("String", "System"));
    }
}

public class FooClient : UserClientBase<IFooService>, IFooService
{
    public Foo Test()
    {
        return Channel.Test();
    }
}

My question is.. how can I do the that with auto-generated proxies?? , like this:

using (FooServiceClient client = new FooServiceClient())
{
    return await client.Test();
}

Answer 1

Exactly the same way as you did before. Almost.

Using Client As New FooServiceClient, Scope As New OperationContextScope(Client.InnerChannel)
    Dim Header As New MessageHeader(Of String)(Thread.CurrentPrincipal.Identity.Name)
    OperationContext.Current.OutgoingMessageHeaders.Add(Header.GetUntypedHeader("String", "System"))
    Return await client.Test();
End Using