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

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

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

                // Utils.Trace("MONITORING MODE[{0}] {1} -> {2}", m_id, m_monitoringMode, monitoringMode);

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

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

                // report change to item state.
                ServerUtils.ReportModifyMonitoredItem(
                    m_nodeId,
                    m_id,
                    m_samplingInterval,
                    m_queueSize,
                    m_discardOldest,
                    m_filterToUse,
                    m_monitoringMode);
                    
                InitializeQueue();

                return previousMode;
            }
        }