QuickOPC User's Guide and Reference
GetMultipleExtensionFieldValues Method (IUAReadOnlyPubSubConfigurationExtension)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.Configuration.Extensions Namespace > IUAReadOnlyPubSubConfigurationExtension Class : GetMultipleExtensionFieldValues Method
OPC UA PubSub configuration (read-only).
The name of the published dataset.
A list of extension field qualified names.
Gets values of multiple extension fields on the specified published dataset, without specifying the dataset folder.
Syntax
'Declaration
 
<ExtensionAttribute()>
<ElementsNotNullAttribute()>
<NotNullAttribute()>
Public Shared Function GetMultipleExtensionFieldValues( _
   ByVal readOnlyPubSubConfiguration As IUAReadOnlyPubSubConfiguration, _
   ByVal publishedDataSetName As String, _
   ByVal extensionFieldQualifiedNameList As IReadOnlyList(Of UAQualifiedName) _
) As ValueResult()
'Usage
 
Dim readOnlyPubSubConfiguration As IUAReadOnlyPubSubConfiguration
Dim publishedDataSetName As String
Dim extensionFieldQualifiedNameList As IReadOnlyList(Of UAQualifiedName)
Dim value() As ValueResult
 
value = IUAReadOnlyPubSubConfigurationExtension.GetMultipleExtensionFieldValues(readOnlyPubSubConfiguration, publishedDataSetName, extensionFieldQualifiedNameList)

Parameters

readOnlyPubSubConfiguration
OPC UA PubSub configuration (read-only).
publishedDataSetName
The name of the published dataset.
extensionFieldQualifiedNameList
A list of extension field qualified names.

Return Value

Returns an array of value result objects, in the same order as in the extensionFieldQualifiedNameList.
Exceptions
ExceptionDescription

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.

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.

Requirements

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

See Also