Opc.Ua.Server.CustomNodeManager2.SetMonitoringMode C# (CSharp) Method

        protected virtual ServiceResult SetMonitoringMode(
            ServerSystemContext context,
            IMonitoredItem monitoredItem,
            MonitoringMode monitoringMode,
            NodeHandle handle)
        {
            // check for valid monitored item.
            MonitoredItem datachangeItem = monitoredItem as MonitoredItem;

            // update monitoring mode.
            MonitoringMode previousMode = datachangeItem.SetMonitoringMode(monitoringMode);

            // must send the latest value after enabling a disabled item.
            if (monitoringMode == MonitoringMode.Reporting && previousMode == MonitoringMode.Disabled)
            {
                handle.MonitoredNode.QueueValue(context, handle.Node, datachangeItem);
            }

            // report change.
            if (previousMode != monitoringMode)
            {
                OnMonitoringModeChanged(
                    context,
                    handle,
                    datachangeItem,
                    previousMode,
                    monitoringMode);
            }
            
            return ServiceResult.Good;
        }