當發送多條消息時，wcf回叫超時

我有一個wcf回調程序，它可以發送消息給客戶端。當發送多條消息時，wcf回叫超時

如果我嘗試發送第二條消息，則整個程序會凍結，並且會得到一個超時錯誤。

這裏是servercode：

public void SendMessageToClient(string computerName, string message) 
    { 
     foreach (var session in connectedClients.Values) 
     { 
      if (session.ComputerName == computerName) 
      { 
       var asyncResult = session.Callback.BeginOnMessageReceived(message, new AsyncCallback(OnPushMessageComplete), session.Callback); 
       if (asyncResult.CompletedSynchronously) 
        CompletePushMessage(asyncResult); 
      } 
     } 
    } 
    void OnPushMessageComplete(IAsyncResult asyncResult) 
    { 
     CompletePushMessage(asyncResult);    
    } 

    void CompletePushMessage(IAsyncResult asyncResult) 
    { 
     var callbackChannel = (IServiceCallback)asyncResult.AsyncState; 
     try 
     { 
      callbackChannel.EndOnMessageReceived(asyncResult); 
     } 
     catch { } 
    }

這是的callbackInterface：

[OperationContract(IsOneWay = true, AsyncPattern = true)] 
    IAsyncResult BeginOnMessageReceived(string message, AsyncCallback acb, object state); 
    void EndOnMessageReceived(IAsyncResult iar);

這是客戶端代碼：

[CallbackBehavior(ConcurrencyMode = ConcurrencyMode.Reentrant, UseSynchronizationContext = false)] 
public class ServiceHandler : IServiceCallback 
{ 
    public delegate void MessageReceivedHandler(string message); 
    public event MessageReceivedHandler OnMessageReceivedEvent; 

    public void OnMessageReceived(string message) 
    { 
     if (this.OnMessageReceivedEvent != null) 
      this.OnMessageReceivedEvent(message); 
    } 
}  

void callback_OnMessageReceivedEvent(string message) 
    { 
     setlb_info(message) 
    } 
public void setlb_info(string wert) 
    { 
     if (this.lb_info.InvokeRequired) 
     { 
      setlb_infoCallback d = new setlb_infoCallback(setlb_info); 
      this.Invoke(d, new object[] { wert }); 
     } 
     else 
     { 
      this.lb_info.Text = wert; 
     } 

    }

如果我試試這個：

Service.CurrentInstance.SendMessageToClient(client_name, message);

客戶端將收到消息，但如果我第二次調用同樣的方法，我會得到timeoutexception（設置爲1分鐘）。

我使用代碼從這個項目（德國）：

http://www.flexbit.at/blog/wcf-duplex-zwischen-windows-sevice-und-gui-frontend/

我希望有人能幫助我，因爲我不能完成我的工作，如果此功能將無法正常工作。

此致

編輯：我忘在客戶端的碼：

var callback = new ServiceHandler(); 
       callback.OnMessageReceivedEvent += new ServiceHandler.MessageReceivedHandler(callback_OnMessageReceivedEvent); 
       var callbackInstanceContext = new InstanceContext(callback); 
       client = new ServiceClient(callbackInstanceContext); 
       client.Subscribe(System.Environment.MachineName);

來源

2012-08-23 Manuel

嘗試改變 [CallbackBehavior（ConcurrencyMode = ConcurrencyMode 折返，UseSynchronizationContext =假）。] 到 [CallbackBehavior（ConcurrencyMode = ConcurrencyMode。Multiple，UseSynchronizationContext = false）]

來源

2012-08-23 18:33:31 Yoztastic

1.尚未。它只是發送一條消息給客戶端。 2.直到例外被調用需要一分鐘。如果我在兩種不同的方法中使用sendMessageToClient（）函數，它會工作得很好，但是如果我一個接一個地編寫它們（sendMessageToClient（client，message1）; sendMessageToClient（client，message2）;'我得到超時 – Manuel

如果你改爲 [CallbackBehavior（ConcurrencyMode = ConcurrencyMode.Multiple，UseSynchronizationContext = false）] – Yoztastic

Yoztastic你解決了我的問題!!對我感到羞恥，我從來沒有嘗試過.Multiple：D謝謝！ – Manuel

當發送多條消息時，wcf回叫超時

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