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

        public virtual void ModifyMonitoredItems(
            OperationContext                  context, 
            TimestampsToReturn                timestampsToReturn, 
            IList<IMonitoredItem>             monitoredItems, 
            IList<MonitoredItemModifyRequest> itemsToModify, 
            IList<ServiceResult>              errors, 
            IList<MonitoringFilterResult>     filterResults)
        {
            ServerSystemContext systemContext = m_systemContext.Copy(context);
            List<IMonitoredItem> modifiedItems = new List<IMonitoredItem>();

            lock (Lock)
            {
                for (int ii = 0; ii < monitoredItems.Count; ii++)
                {                    
                    MonitoredItemModifyRequest itemToModify = itemsToModify[ii];

                    // skip items that have already been processed.
                    if (itemToModify.Processed || monitoredItems[ii] == null)
                    {
                        continue;
                    }

                    // check handle.
                    NodeHandle handle = IsHandleInNamespace(monitoredItems[ii].ManagerHandle);

                    if (handle == null)
                    {
                        continue;
                    }

                    // owned by this node manager.
                    itemToModify.Processed = true;

                    // modify the monitored item.
                    MonitoringFilterResult filterResult = null;

                    errors[ii] = ModifyMonitoredItem(
                        systemContext,
                        context.DiagnosticsMask,
                        timestampsToReturn,
                        monitoredItems[ii],
                        itemToModify,
                        handle,
                        out filterResult);

                    // save any filter error details.
                    filterResults[ii] = filterResult;

                    // save the modified item.
                    if (ServiceResult.IsGood(errors[ii]))
                    {
                        modifiedItems.Add(monitoredItems[ii]);
                    }
                }
            }

            // do any post processing.
            OnModifyMonitoredItemsComplete(systemContext, modifiedItems);
        }