Reference

OpcClient.RegisterNode Method

Type

OpcClient

Namespace

Opc.UaFx.Client

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Members

OpcClient Members

Also in

Opc.UaFx.Client

2 overloads · since v2.8

Overload	Description
RegisterNode(OpcRegisterNode)since v2.8	Registers a node for optimized node access using the command specified.
RegisterNode(OpcNodeId)since v2.8	Registers a node for optimized node access using the identifier of the node.

Known results: BadNodeIdInvalid

Exceptions (all overloads)

Exception	Condition
ObjectDisposedException	The object has been disposed of.

RegisterNode(OpcRegisterNode)

since v2.8

Registers a node for optimized node access using the command specified.

public OpcNodeId RegisterNode(OpcRegisterNode command)

Public Function RegisterNode(command As OpcRegisterNode) As OpcNodeId

Parameters

Name	Type	Description
command	OpcRegisterNode	The OpcRegisterNode instance to process.

Returns

OpcNodeId

An instance of the OpcNodeId class which is to be used for subsequent optimized node access.

Exceptions

Exception	Condition
ArgumentNullException	The command is a null reference (Nothing in Visual Basic).
InvalidOperationException	The register node service is currently not supported, especially using the command specified.
OpcException	The service execution failed upon different circumstances; for more details see exception details. The following issues can lead to that exception: BadNothingToDo and BadTooManyMatches.

Remarks

Servers completely reject register nodes requests if any of the node identifiers passed are structurally invalid.

RegisterNode(OpcNodeId)

since v2.8

Registers a node for optimized node access using the identifier of the node. A once registered node needs to be unregistered as soon as the optimized node access is not longer required. This assures that the server can release unused resources reserved for the optimized node access.

public OpcNodeId RegisterNode(OpcNodeId nodeId)

Public Function RegisterNode(nodeId As OpcNodeId) As OpcNodeId

Parameters

Name	Type	Description
nodeId	OpcNodeId	The OpcNodeId through that the node to register can be identified.

Returns

OpcNodeId

An instance of the OpcNodeId class which is to be used for subsequent optimized node access. Use this identifier to release unused resources associated with the optimized node access using UnregisterNode as soon as the optimized node access is not longer required.

Exceptions

Exception	Condition
ArgumentException	The nodeId is equals Null.
ArgumentNullException	The nodeId is a null reference (Nothing in Visual Basic).
InvalidOperationException	The register node service is currently not supported, especially using the parameters specified.
OpcException	The service execution failed upon different circumstances; for more details see exception details. The following issues can lead to that exception: BadNothingToDo and BadTooManyOperations.

Remarks

Servers completely reject register nodes requests if any of the node identifiers passed are structurally invalid.