Add Header to WCF packets

WcfAddHeader.cs

    class Program
    {
        private static void Main(string[] args)
        {
            var ret1 = ServiceFactory.BaseInfoService.Instance.GetData(15);

            ServiceFactory.BaseInfoService.SetClientContext(new ClientContext(332, 13));

            var ret2 = ServiceFactory.BaseInfoService.Instance.GetData(1055);

            Console.WriteLine(ret1 + " " + ret2);

            Console.ReadKey();
        }
    }
    
        public void SetClientContext(ClientContext context)
        {
            var contextChannel = (IContextChannel)Instance;
            var scope = new OperationContextScope(contextChannel);
            var header = MessageHeader.CreateHeader("ClientContext", "", context);
            OperationContext.Current.OutgoingMessageHeaders.Clear();
            OperationContext.Current.OutgoingMessageHeaders.Add(header);
        }
        
    [Serializable]
    public class ClientContext
    {
        public ClientContext(int userId, int branchId)
        {
            this.UserId = userId;
            this.BranchId = branchId;
        }

        public int UserId { get; set; }

        public int BranchId { get; set; }
    }
    
    public static class WcfSecurityHelper
    {
        public static ClientContext GetClientContext()
        {

            var opContext = OperationContext.Current;
            var requestContext = opContext.RequestContext;
            var headers = requestContext.RequestMessage.Headers;
            var headerIndex = headers.FindHeader("ClientContext", "");
            if (headerIndex >= 0)
                return headers.GetHeader<ClientContext>(headerIndex);
            return null;
        }
    }