private void InitUAClient()
        {
            _easyUAClient = new OpcLabs.EasyOpc.UA.EasyUAClient();
            EasyUAClient.AdaptableParameters.SessionParameters.KeepAliveInterval = 500;
            EasyUAClient.AdaptableParameters.SessionParameters.HoldPeriod = 60 * 1000;
        }
 
        public static void RegisterManagedResource()
        {
            // Register a license that is we embed as a managed resource in this program.
 
            // The first two arguments should always be "QuickOPC" and "Multipurpose".
            // The third argument determines the assembly where the license resides.
            // The fourth argument is the namespace-qualified name of the managed resource.
            LicensingManagement.Instance.RegisterManagedResource("QuickOPC", "Multipurpose",
                Assembly.GetExecutingAssembly(),
                "OpcUa.Key-Permanent-ShareIt.bin");
        }