OPC Studio User's Guide and Reference
UANodeArguments Constructor(Object,UADiscoveryElement,IUANodeElement)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.OperationModel Namespace > UANodeArguments Class > UANodeArguments Constructor : UANodeArguments Constructor(Object,UADiscoveryElement,IUANodeElement)
User-defined state object.

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

Application element object that provides information about the OPC-UA server.

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

Node element object that provides the Node Id.

This is typically the OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement object.

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

Initializes a new instance of the class, specifying the state object, discovery element, and node element.
Syntax
'Declaration
 
Public Function New( _
   ByVal state As Object, _
   ByVal discoveryElement As UADiscoveryElement, _
   ByVal nodeElement As IUANodeElement _
)
'Usage
 
Dim state As Object
Dim discoveryElement As UADiscoveryElement
Dim nodeElement As IUANodeElement
 
Dim instance As New UANodeArguments(state, discoveryElement, nodeElement)

Parameters

state
User-defined state object.

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

discoveryElement
Application element object that provides information about the OPC-UA server.

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

nodeElement
Node element object that provides the Node Id.

This is typically the OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement object.

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

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.

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