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

        public MonitoringMode SetMonitoringMode(MonitoringMode monitoringMode)
        {
            lock (m_lock)
            {
                MonitoringMode previousMode = m_monitoringMode;

                if (previousMode == monitoringMode)
                {
                    return previousMode;
                }

                if (previousMode == MonitoringMode.Disabled)
                {
                    m_nextSampleTime = DateTime.UtcNow.Ticks;
                    m_lastError = null;
                    m_lastValue = null;
                }

                m_monitoringMode = monitoringMode;
                
                if (monitoringMode == MonitoringMode.Disabled)
                {
                    m_readyToPublish = false;
                    m_readyToTrigger = false;
                }

                return previousMode;
            }
        }