Collections

A collection is a C# object that contains multiple objects. You can use collections for counting, iterating, adding, and removing child nodes of a given node.

Generic children collections

Available in every IUANode C# object and each project node. Generic children collect the object/node properties and other objects/nodes that are its direct children.

Specialized collections

This table shows the object types that have a related specialized collection.
Type of project object	`BrowseName` of the object type	Collection	Type of collection object
Data logger	`DataLogger`	`VariablesToLog`	`VariableToLog`
Event logger	`EventLogger`	`EventFields`	`EventField`
OPC UA Client	`OPCUAClient`	`RuntimeConfigurations`	`RuntimeConfigurationEntry`
OPC UA Server	`OPCUAServer`	`NodesToPublish`	`NodesToPublishConfigurationEntry`
		`NodesToPublish.Nodes`	`NodePointer` that point to the project nodes
		`NodesToPublish.Users`	`NodePointer` that point to users
Report	`Report`	`Sections`	`UI.Item`
Retentivity database	`RetentivityStorage`	`Nodes`	`IUAVariable` that point to the roots of the nodes with the retentivity set.
Store	`Store`	`Tables`	`Table`
Table	`Table`	`Columns`	`Column`
Circular gauge	`CircularGauge`	`WarningZones`	`WarningZone`
Linear gauge	`LinearGauge`	`WarningZones`	`WarningZone`
Data grid	`DataGrid`	`Columns`	`DataGridColumn`
Navigation panel	`NavigationPanel`	`Panels`	`NavigationPanelItems`
Trend pen	`Trend`	`Pens`	`TrendPen`
XY chart line	`XYChart`	`Pens`	`XYChartPen`
Communication station	`IStation`	`Tags`	`Tag`
Communication station	`IStation`	`TagStructure`	`CommunicationDriver.TagStructure`
Containers Graphical objects that can have children	-	`Items`	`Item`
Object	`BaseObject`	`InstanceNodeCollection`	`BaseObject` Tip: Instances of any derived types that are not represented in `InstanceNodeCollection`. They can be listed manually with the derived types first.
Variable	`BaseVariable`	`InstanceNodeCollection`	`BaseVariable` Tip: Instances of any derived types that are not represented in `InstanceNodeCollection`. They can be listed manually with the derived types first.