OPC Studio User's Guide and Reference
GetSecurityKeys Method (IUAReadOnlyPubSubSecurityKeyServiceExtension)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.SecurityKeyService.Extensions Namespace > IUAReadOnlyPubSubSecurityKeyServiceExtension Class : GetSecurityKeys Method
OPC UA PubSub security key service (read-only).
The identifier for the security group.
Starting token Id. The current token is requested by passing 0.
The number of requested keys which should be returned in the response.
Retrieves the security keys for a security group.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Shared Function GetSecurityKeys( _
   ByVal readOnlyPubSubSecurityKeyService As IUAReadOnlyPubSubSecurityKeyService, _
   ByVal securityGroupId As String, _
   ByVal startingTokenId As Long, _
   ByVal requestedKeyCount As Long _
) As SecurityKeysInfo
'Usage
 
Dim readOnlyPubSubSecurityKeyService As IUAReadOnlyPubSubSecurityKeyService
Dim securityGroupId As String
Dim startingTokenId As Long
Dim requestedKeyCount As Long
Dim value As SecurityKeysInfo
 
value = IUAReadOnlyPubSubSecurityKeyServiceExtension.GetSecurityKeys(readOnlyPubSubSecurityKeyService, securityGroupId, startingTokenId, requestedKeyCount)

Parameters

readOnlyPubSubSecurityKeyService
OPC UA PubSub security key service (read-only).
securityGroupId
The identifier for the security group.
startingTokenId
Starting token Id. The current token is requested by passing 0.
requestedKeyCount
The number of requested keys which should be returned in the response.

Return Value

Returns the security keys info with the requested keys.
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 value of an argument is outside the allowable range of values as defined by the invoked method.

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.

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