OPC Studio User's Guide and Reference
CancelObtainNewCertificate Method (AbstractEasyUAClientServerApplication)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Application Namespace > AbstractEasyUAClientServerApplication Class : CancelObtainNewCertificate Method
A status object that represents an asynchronous call.
It is the asynchronous result returned by the BeginObtainNewCertificate method.
Cancels an asynchronous operation started with the BeginObtainNewCertificate method.
Syntax
'Declaration
 
Public Sub CancelObtainNewCertificate( _
   ByVal asyncResult As IAsyncResult _
) 
'Usage
 
Dim instance As AbstractEasyUAClientServerApplication
Dim asyncResult As IAsyncResult
 
instance.CancelObtainNewCertificate(asyncResult)
public void CancelObtainNewCertificate( 
   IAsyncResult asyncResult
)
public:
void CancelObtainNewCertificate( 
   IAsyncResult^ asyncResult
) 

Parameters

asyncResult
A status object that represents an asynchronous call.
It is the asynchronous result returned by the BeginObtainNewCertificate method.
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.

A method call was invalid for the object's current state.

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.

Remarks

The cancellation may or may not succeed. When the operation is cancelled, the EndObtainNewCertificate method will throw System.OperationCanceledException exception.

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