Connectivity Software User's Guide and Reference
RegisterUnsubscribeItem Method



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace > DAClientOperationContext Class : RegisterUnsubscribeItem Method
A client mapping for an OPC Data Access item.

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

Registers a given OPC-DA item mapping to an Unsubscribe operation.
Syntax
'Declaration
 

Public Sub RegisterUnsubscribeItem( _
   ByVal clientItemMapping As DAClientItemMapping _
) 
'Usage
 

Dim instance As DAClientOperationContext
Dim clientItemMapping As DAClientItemMapping
 
instance.RegisterUnsubscribeItem(clientItemMapping)
public void RegisterUnsubscribeItem( 
   DAClientItemMapping clientItemMapping
)
public:
void RegisterUnsubscribeItem( 
   DAClientItemMapping^ clientItemMapping
)

Parameters

clientItemMapping
A client mapping for an OPC Data Access item.

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

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

Reference

DAClientOperationContext Class
DAClientOperationContext Members

 

 

Copyright © 2004-2025 CODE Consulting and Development, s.r.o., Plzen. All rights reserved. Web page: www.opclabs.com

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

Missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.