public static bool IsLoggedIn() { bool result = false; AuthenticationServiceClient client = new AuthenticationServiceClient(); OperationContextScope scope = new OperationContextScope(client.InnerChannel); var prop = new HttpRequestMessageProperty(); prop.Headers.Add(HttpRequestHeader.Cookie, ModelLocator.getInstance().SessionModel.SessionCookie); OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = prop; result = client.IsLoggedIn(); client.Close(); return(result); }