OPC Studio User's Guide and Reference
OnRequestPolymorphicChanged Method (UserValueControl)



OpcLabs.BaseLibForms Assembly > OpcLabs.BaseLib.Forms Namespace > UserValueControl Class : OnRequestPolymorphicChanged Method
The old value of the property.
Called when the value of the RequestPolymorphic property has changed.
Syntax
'Declaration
 

Protected Overridable Sub OnRequestPolymorphicChanged( _
   ByVal oldValue As Boolean _
) 
'Usage
 

Dim instance As UserValueControl
Dim oldValue As Boolean
 
instance.OnRequestPolymorphicChanged(oldValue)
protected virtual void OnRequestPolymorphicChanged( 
   bool oldValue
)
protected:
virtual void OnRequestPolymorphicChanged( 
   bool oldValue
)

Parameters

oldValue
The old value of the property.
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

UserValueControl Class
UserValueControl Members

 

 

Copyright © 2004-2024 CODE Consulting and Development, s.r.o., Plzen. All rights reserved. Web page: www.opclabs.com

Send Documentation 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.