public void ServiceOperation(Action<TContract> operation)
        {
            if (_client == null) return;

            try
            {
                operation(_client);
            }
            catch (TimeoutException)
            {
                if (_tryReConnect < _maxTry)
                {
                    _tryReConnect++;
                    if (_callback == null)
                    {
                        ChannelFactory<TContract> factory = CreateFactory();
                        _client = factory.CreateChannel();
                    }
                    else
                    {
                        DuplexChannelFactory<TContract> factory = CreateDuplexFactory();
                        _client = factory.CreateChannel();
                    }
                    ServiceOperation(operation);
                }
                else
                {
                    throw new TimeoutException();
                }
            }
        }