C#

// The delegate
public delegate void MyDelegate();
// The remote (server) object
class RemoteObject : System.MarshalByRefObject
{
    // code...
    
    public event MyDelegate EvMyEvent;
}

// The client object
class MyClient
{
    // code...
    
    private void MyDelegateFunction()
    {
    }
    
    public MyClient()
    {
        RemoteObject oRO = null;
        // Get the remote object
        oRO.EvMyEvent += new MyDelegate(MyDelegateFunction); // Exception:
        /*
             An unhandled exception of
             type 'System.Runtime.Serialization.SerializationException' occurred in 
             mscorlib.dll
    
             Additional information: Serialization will not deserialize delegates 
             to non-public methods.
        */
    }
}