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

        private void CheckIfSemanticsHaveChanged(ServerSystemContext systemContext, PropertyState property, object newPropertyValue, object previousPropertyValue)
        {
            // check if the changed property is one that can trigger semantic changes
            string propertyName = property.BrowseName.Name;

            if (propertyName != BrowseNames.EURange &&
                propertyName != BrowseNames.InstrumentRange &&
                propertyName != BrowseNames.EngineeringUnits &&
                propertyName != BrowseNames.Title &&
                propertyName != BrowseNames.AxisDefinition &&
                propertyName != BrowseNames.FalseState &&
                propertyName != BrowseNames.TrueState &&
                propertyName != BrowseNames.EnumStrings &&
                propertyName != BrowseNames.XAxisDefinition &&
                propertyName != BrowseNames.YAxisDefinition &&
                propertyName != BrowseNames.ZAxisDefinition)
            {
                return;
            }

            //look for the Parent and its monitoring items
            foreach (var monitoredNode in m_monitoredNodes.Values)
            {
                var propertyState = monitoredNode.Node.FindChild(systemContext, property.BrowseName);

                if (propertyState!=null && property!= null && propertyState.NodeId == property.NodeId && !Utils.IsEqual(newPropertyValue, previousPropertyValue))
                {
                    foreach (var monitoredItem in monitoredNode.DataChangeMonitoredItems)
                    {
                        if (monitoredItem.AttributeId == Attributes.Value)
                        {
                            NodeState node = monitoredNode.Node;

                            if ((node is AnalogItemState && (propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits)) ||
                                (node is TwoStateDiscreteState && (propertyName == BrowseNames.FalseState || propertyName == BrowseNames.TrueState)) ||
                                (node is MultiStateDiscreteState && (propertyName == BrowseNames.EnumStrings)) ||
                                (node is ArrayItemState && (propertyName == BrowseNames.InstrumentRange || propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits || propertyName == BrowseNames.Title)) ||
                                ((node is YArrayItemState || node is XYArrayItemState) && (propertyName == BrowseNames.InstrumentRange || propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits || propertyName == BrowseNames.Title || propertyName == BrowseNames.XAxisDefinition)) ||
                                (node is ImageItemState && (propertyName == BrowseNames.InstrumentRange || propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits || propertyName == BrowseNames.Title || propertyName == BrowseNames.XAxisDefinition || propertyName == BrowseNames.YAxisDefinition)) ||
                                (node is CubeItemState && (propertyName == BrowseNames.InstrumentRange || propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits || propertyName == BrowseNames.Title || propertyName == BrowseNames.XAxisDefinition || propertyName == BrowseNames.YAxisDefinition || propertyName == BrowseNames.ZAxisDefinition)) ||
                                (node is NDimensionArrayItemState && (propertyName == BrowseNames.InstrumentRange || propertyName == BrowseNames.EURange || propertyName == BrowseNames.EngineeringUnits || propertyName == BrowseNames.Title || propertyName == BrowseNames.AxisDefinition)))
                            {
                                monitoredItem.SetSemanticsChanged();

                                DataValue value = new DataValue();
                                value.ServerTimestamp = DateTime.UtcNow;

                                monitoredNode.Node.ReadAttribute(systemContext, Attributes.Value, monitoredItem.IndexRange, null, value);

                                monitoredItem.QueueValue(value, ServiceResult.Good, true);
                            }
                        }
                    }
                }
            }
        }