Reference

OpcInstanceNode Class

abstract

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Members

OpcInstanceNode Members

Defines the abstract base class of all instance nodes.

Syntax

public abstract class OpcInstanceNode : OpcNode

Public MustInherit Class OpcInstanceNode
    Inherits OpcNode

Inheritance

Object → OpcNode → OpcInstanceNode

Implements

• IOpcNode
• IOpcNodeInfo

Derived types

• OpcMethodNode
• OpcObjectNode
• OpcVariableNode

Remarks

An instance node is a specialization of the OpcNode that references a modelling rule (see ModellingRuleId) with the HasModellingRule reference while it is the target node of a hierarchical reference from a type definition node or another OpcInstanceNode.

Properties

Name	Description
DefaultReferenceTypeIdprotected · virtual	Gets the default identifier which identifies the type that defines the underlying node reference within this OpcInstanceNode is referenced by its parent node.
DefaultTypeDefinitionIdprotected · virtual	Gets the default identifier which identifies the node that defines the underlying node type from that this OpcInstanceNode has been created.
InheritReferenceTypeIdprotected · virtual · since v2.54	Gets a value indicating whether the DefaultReferenceTypeId of the current node is to be used for its children nodes initial ReferenceTypeId.
ModellingRuleId	Gets or sets the identifier which defines how the OpcInstanceNode is used for instantiation.
Parentoverride	Gets the parent node of the node.
ReferenceType	Gets a value which defines a pre-defined used ReferenceTypeId as one of the members defined by the OpcReferenceType enumeration to simplify querying standard reference types.
ReferenceTypeId	Gets or sets the identifier which identifies the node that defines the semantic of the reference between a source and a target node and generally reflects an operation between the two, such as "A contains B".
TypeDefinitionId	Gets or sets the identifier which identifies the node that defines the underlying node type from that this OpcInstanceNode has been created.

Methods

Name	Description
AddChild	Adds the node specified as a child node of this node.
GetNodeValue2 overloads · since v2.20	Retrieves the value of the child variable node with the name specified in the Namespace of this node.
InitializeDefaultsprotected · override	Initializes the default values used by the OpcInstanceNode.
RemoveChild	Removes the node specified from the child nodes of this node.
RemoveNotifieroverride	Removes the node from the collection of notifiers (= event sources) of this node.
SetNodeValue2 overloads · since v2.20	Changes the value of the child variable node with the name specified in the Namespace of this node and applies the change.

Inherits members from OpcNode.

Applies to

Package	Versions
Opc.UaFx.Advanced	v2.5–v2.59