CODEWITHSUNDEEP
c#wcfreflectionduplex-channel
Shabana
Shabana

Reputation: 89

How io invoke member if member has callback implementation

I have a service object which has method having callback implementation mentioned below

public string GetMacName()
{
string value = System.Environment.MachineName.ToString();
msgCallback = OperationContext.Current.GetCallbackChannel<IServiceCallBack>();
 msgCallback.Notify(value);
return value;
}

I have created a DuplexChannelfactory and got the service object in my client. Now, with the service object I retrieve Type as Client Side: 

DuplexChannelFactory<IServiceOne> factory = new DuplexChannelFactory<IServiceOne>(callbackInstance, new NetTcpBinding(), "uri");
proxyObject = factory.CreateChannel(); Type t=  proxyObject.GetType();

I have implemented IServiceOneCallback method in client 

public string Notify(string value)
{
Notification=value;
}

I am invoking the method GetMacName() as mentioned below:

t.Invoke("GetMacName", BindingFlags.Default | BindingFlags.InvokeMethod, null, proxyObject, args);

this is getting failed... where i m wrong,is something for callback needs to done in Invoke

Upvotes: 1

Views: 240

Answers (1)

Shabana
Shabana

Reputation: 89

Got it working... [CallbackBehavior(ConcurrencyMode=ConcurrencyMode.Multiple,UseSynchronizationCon‌​text=false)] attribute needs to be added for wpf or winform application, something to do with synchronization context. Thank you for your inputs.

Upvotes: 0

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