Reference

OpcAttributeOperand Members

Type

OpcAttributeOperand

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Inherits members from OpcFilterOperand.

Constructors

OpcAttributeOperand

6 overloads

Overload	Description
OpcAttributeOperand(OpcNodeId)	Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node with the nodeId specified.
OpcAttributeOperand(OpcNodeId, OpcRelativePath)	Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node reached by the nodePath from the node with the nodeId specified.
OpcAttributeOperand(OpcNodeId, params OpcName[])	Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node reached by the nodePathElements from the node with the nodeId specified.
OpcAttributeOperand(OpcNodeId, OpcAttribute)	Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node with the nodeId specified.
OpcAttributeOperand(OpcNodeId, OpcAttribute, OpcRelativePath)	Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node reached by the nodePath from the node with the nodeId specified.
OpcAttributeOperand(OpcNodeId, OpcAttribute, params OpcName[])	Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node reached by the nodePathElements from the node with the nodeId specified.

OpcAttributeOperand(OpcNodeId)

Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node with the nodeId specified.

public OpcAttributeOperand(OpcNodeId nodeId)

Public Sub New(nodeId As OpcNodeId)

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId is a null reference (Nothing in Visual Basic).

OpcAttributeOperand(OpcNodeId, OpcRelativePath)

Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node reached by the nodePath from the node with the nodeId specified.

public OpcAttributeOperand(OpcNodeId nodeId, OpcRelativePath nodePath)

Public Sub New(nodeId As OpcNodeId, nodePath As OpcRelativePath)

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node the path starts from.
nodePath	OpcRelativePath	The relative path to the node.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId or nodePath is a null reference (Nothing in Visual Basic).

OpcAttributeOperand(OpcNodeId, params OpcName[])

Initializes a new instance of the OpcAttributeOperand class referring to the Value attribute of the node reached by the nodePathElements from the node with the nodeId specified.

public OpcAttributeOperand(OpcNodeId nodeId, params OpcName[] nodePathElements)

Public Sub New(nodeId As OpcNodeId, ParamArray nodePathElements As OpcName())

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node the path starts from.
nodePathElements	params OpcName[]	The names of the nodes along the path. Each element is followed using the reference type Aggregates.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId, the nodePathElements or one of its elements is a null reference (Nothing in Visual Basic).

OpcAttributeOperand(OpcNodeId, OpcAttribute)

Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node with the nodeId specified.

public OpcAttributeOperand(OpcNodeId nodeId, OpcAttribute attribute)

Public Sub New(nodeId As OpcNodeId, attribute As OpcAttribute)

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node.
attribute	OpcAttribute	The attribute of the node.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId is a null reference (Nothing in Visual Basic).

OpcAttributeOperand(OpcNodeId, OpcAttribute, OpcRelativePath)

Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node reached by the nodePath from the node with the nodeId specified.

public OpcAttributeOperand(
    OpcNodeId nodeId,
    OpcAttribute attribute,
    OpcRelativePath nodePath)

Public Sub New(
    nodeId As OpcNodeId,
    attribute As OpcAttribute,
    nodePath As OpcRelativePath)

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node the path starts from.
attribute	OpcAttribute	The attribute of the node reached.
nodePath	OpcRelativePath	The relative path to the node.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId or nodePath is a null reference (Nothing in Visual Basic).

OpcAttributeOperand(OpcNodeId, OpcAttribute, params OpcName[])

Initializes a new instance of the OpcAttributeOperand class referring to the attribute of the node reached by the nodePathElements from the node with the nodeId specified.

public OpcAttributeOperand(
    OpcNodeId nodeId,
    OpcAttribute attribute,
    params OpcName[] nodePathElements)

Public Sub New(
    nodeId As OpcNodeId,
    attribute As OpcAttribute,
    ParamArray nodePathElements As OpcName())

Parameters

Name	Type	Description
nodeId	OpcNodeId	The identifier of the node the path starts from.
attribute	OpcAttribute	The attribute of the node reached.
nodePathElements	params OpcName[]	The names of the nodes along the path. Each element is followed using the reference type Aggregates.

Exceptions

Exception	Condition
ArgumentNullException	The nodeId, the nodePathElements or one of its elements is a null reference (Nothing in Visual Basic).

Properties

Attribute

Gets the attribute the operand refers to.

public OpcAttribute Attribute { get; }

Public ReadOnly Property Attribute As OpcAttribute

Property value

OpcAttribute

The attribute of the node; Value if no attribute has been specified.

NodeId

Gets the identifier of the node the operand starts from.

public OpcNodeId NodeId { get; }

Public ReadOnly Property NodeId As OpcNodeId

Property value

OpcNodeId

The identifier of the node.

NodePath

Gets the relative path from the node identified by NodeId to the node whose attribute the operand refers to.

public OpcRelativePath NodePath { get; }

Public ReadOnly Property NodePath As OpcRelativePath

Property value

OpcRelativePath

The relative path or a null reference (Nothing in Visual Basic) if the operand has been created without a path.