can wcf netTcpBinding callbacks return out of order
问题 Consider a most simple client/server callback setup using netTcpBinding Server: _callback.BeginReceive(message, EndCallbackClient, null);//send message to client Client : [CallbackBehavior(ConcurrencyMode = ConcurrencyMode.Single, UseSynchronizationContext=false)] public class TradingClient : ITradingClientCallback, IDisposable { public void Receive(Message message) { //handle message } Please note <reliableSession ordered="true"/> is not in the WCF config If, for example, the client side