QuickOPC User's Guide and Reference
BrowseConnections Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.Configuration.Extensions Namespace > IUAReadOnlyPubSubConfigurationExtension Class : BrowseConnections Method
OPC UA PubSub configuration (read-only).
Gets the elements for PubSub connections in the PubSub configuration.
Syntax
'Declaration
 
<ExtensionAttribute()>
<ElementsNotNullAttribute()>
<NotNullAttribute()>
Public Shared Function BrowseConnections( _
   ByVal readOnlyPubSubConfiguration As IUAReadOnlyPubSubConfiguration _
) As KeyedCollection(Of String,UAPubSubConnectionElement)
'Usage
 
Dim readOnlyPubSubConfiguration As IUAReadOnlyPubSubConfiguration
Dim value As KeyedCollection(Of String,UAPubSubConnectionElement)
 
value = IUAReadOnlyPubSubConfigurationExtension.BrowseConnections(readOnlyPubSubConfiguration)

Parameters

readOnlyPubSubConfiguration
OPC UA PubSub configuration (read-only).

Return Value

Returns a collection of PubSub connection elements, keyed by connection name.
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.

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.

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