GetTrustList Method (IEasyUACertificateManagement)

Retrieves the node ID of a trust list assigned to an application.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<NotNullAttribute()>
Function GetTrustList( _
   ByVal gdsEndpointDescriptor As UAEndpointDescriptor, _
   ByVal applicationId As UANodeId, _
   ByVal certificateGroupId As UANodeId _
) As UANodeId

'Usage
 
Dim instance As IEasyUACertificateManagement
Dim gdsEndpointDescriptor As UAEndpointDescriptor
Dim applicationId As UANodeId
Dim certificateGroupId As UANodeId
Dim value As UANodeId
 
value = instance.GetTrustList(gdsEndpointDescriptor, applicationId, certificateGroupId)

[NotNull()]
UANodeId GetTrustList( 
   UAEndpointDescriptor gdsEndpointDescriptor,
   UANodeId applicationId,
   UANodeId certificateGroupId
)

[NotNull()]
UANodeId^ GetTrustList( 
   UAEndpointDescriptor^ gdsEndpointDescriptor,
   UANodeId^ applicationId,
   UANodeId^ certificateGroupId
)

Parameters

gdsEndpointDescriptor: Endpoint descriptor. Identifies the OPC-UA server. The server must be a Global Directory Server (GDS).
applicationId: The identifier assigned to the Application by the GDS.
certificateGroupId: An identifier for a Certificate Group that the Application belongs to.
If OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.Null, the CertificateManager shall return the trustListId for a suitable default group for the Application.

Return Value

The NodeId for a Trust List Object that can be used to download the Trust List assigned to the Application.

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.

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.

Remarks

If you want to refresh the trust lists of the current client application, it is recommended that you use the higher-level OpcLabs.EasyOpc.UA.Application.IEasyUAClientServerApplication.RefreshTrustLists method instead.

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

IEasyUACertificateManagement Interface
IEasyUACertificateManagement Members

Send Documentation Feedback. Resources: Knowledge Base. Technical support: Online Forums, FAQ.