FindPublishedDataSetElement Method (IUAReadOnlyPubSubConfiguration)

Finds a published dataset by its name in an optionally specified dataset folder.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<JetBrains.Annotations.CanBeNullAttribute()>
Function FindPublishedDataSetElement( _
   ByVal publishedDataSetName As String, _
   ByVal dataSetFolderPath As IReadOnlyList(Of String) _
) As UAPublishedDataSetElement

'Usage
 
Dim instance As IUAReadOnlyPubSubConfiguration
Dim publishedDataSetName As String
Dim dataSetFolderPath As IReadOnlyList(Of String)
Dim value As UAPublishedDataSetElement
 
value = instance.FindPublishedDataSetElement(publishedDataSetName, dataSetFolderPath)

[JetBrains.Annotations.CanBeNull()]
UAPublishedDataSetElement FindPublishedDataSetElement( 
   string publishedDataSetName,
   IReadOnlyList<string> dataSetFolderPath
)

[JetBrains.Annotations.CanBeNull()]
UAPublishedDataSetElement^ FindPublishedDataSetElement( 
   String^ publishedDataSetName,
   IReadOnlyList<String^>^ dataSetFolderPath
)

Parameters

publishedDataSetName

The name of the published dataset.

The value of this parameter cannot be null (Nothing in Visual Basic).

dataSetFolderPath

An optional path to the folder that contains the published dataset.

The value of this parameter can be null (Nothing in Visual Basic).

The individual elements of the parameter value cannot be null (Nothing in Visual Basic).

Return Value

Returns a published dataset element representing the published data set, or null when the specified published dataset does not exist.

This method can return null (Nothing in Visual Basic).

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.
OpcLabs.EasyOpc.UA.OperationModel.UAException	The OPC UA operation has failed. This operation exception in uniformly used to allow common handling of various kinds of errors. The System.Exception.InnerException always contains information about the actual error cause. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
OpcLabs.EasyOpc.UA.OperationModel.UALogicalException	There is a logical error in the OPC UA operation. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

System.ArgumentNullException

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

OpcLabs.EasyOpc.UA.OperationModel.UAException

The OPC UA operation has failed. This operation exception in uniformly used to allow common handling of various kinds of errors. The System.Exception.InnerException always contains information about the actual error cause.

This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

OpcLabs.EasyOpc.UA.OperationModel.UALogicalException

There is a logical error in the OPC UA operation.

This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

Remarks

When the dataSetFolderPath is not null, the search is performed in the specified dataset folder only. When the dataSetFolderPath is null, the whole dataset folder structure is searched. Note that the published dataset name must be unique across all dataset folders in the PubSub configuration.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

IUAReadOnlyPubSubConfiguration Interface
IUAReadOnlyPubSubConfiguration Members

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