'Declaration
 
<JetBrains.Annotations.MustUseReturnValueAttribute()>
<JetBrains.Annotations.NotNullAttribute()>
Function BeginObtainNewCertificateOrCertificatePack( _
   ByVal arguments As UAObtainCertificateArguments, _
   ByVal asyncCallback As AsyncCallback, _
   ByVal state As Object, _
   ByVal progress As IProgress(Of String()) _
) As IAsyncResult

'Usage
 
Dim instance As IEasyUAClientServerApplication
Dim arguments As UAObtainCertificateArguments
Dim asyncCallback As AsyncCallback
Dim state As Object
Dim progress As IProgress(Of String())
Dim value As IAsyncResult
 
value = instance.BeginObtainNewCertificateOrCertificatePack(arguments, asyncCallback, state, progress)

[JetBrains.Annotations.MustUseReturnValue()]
[JetBrains.Annotations.NotNull()]
IAsyncResult BeginObtainNewCertificateOrCertificatePack( 
   UAObtainCertificateArguments arguments,
   AsyncCallback asyncCallback,
   object state,
   IProgress<string[]> progress
)

[JetBrains.Annotations.MustUseReturnValue()]
[JetBrains.Annotations.NotNull()]
IAsyncResult^ BeginObtainNewCertificateOrCertificatePack( 
   UAObtainCertificateArguments^ arguments,
   AsyncCallback^ asyncCallback,
   Object^ state,
   IProgress<array<String^>>^ progress
) 

Parameters

arguments

Contains arguments for obtaining a new application certificate from the OPC UA Global Discovery Server (GDS).

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

asyncCallback

The delegate that is executed when the operation completes.

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

state

An object that contains any additional user-defined data.

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

progress

A provider for progress updates.

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

Return Value

When UACertificateArguments.CertificateTypeId in arguments is null (Nothing in Visual Basic), the operation obtains the whole certificate pack. Otherwise, it obtains the certificate of certificate type specified by the UACertificateArguments.CertificateTypeId in arguments. If the specified certificate type Id is Null, the default certificate type Id from DefaultCertificateTypeId is used instead.

When certificate pack is used, this method operates on certificates with certificate type Ids given by PackCertificateTypeIds.

The operation is asynchronous, because it involves multiple steps, and waiting for a finalization of the request by the GDS (see the OpcLabs.EasyOpc.UA.Gds.IEasyUACertificateManagement.FinishRequest method). End of the operation is handled by the EndObtainNewCertificateOrCertificatePack method. The operation can be cancelled using the CancelObtainNewCertificateOrCertificatePack method.

For a synchronous alternative, see the ObtainNewCertificateOrCertificatePack(IEasyUAClientServerApplication,UAObtainCertificateArguments) extension method and its overloads.

For a task-based asynchronous programming pattern alternative, see the ObtainNewCertificateOrCertificatePackAsync(IEasyUAClientServerApplication,UAObtainCertificateArguments) extension method and its overloads.

The operation first updates the application's registration in the GDS, before making a request to the certificate manager.

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