IsModelNode Method (IUAReadOnlyModelProvider)

Determined whether the given node belongs to the model.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Function IsModelNode( _
   ByVal modelNodeDescriptor As UAModelNodeDescriptor _
) As Boolean

'Usage
 
Dim instance As IUAReadOnlyModelProvider
Dim modelNodeDescriptor As UAModelNodeDescriptor
Dim value As Boolean
 
value = instance.IsModelNode(modelNodeDescriptor)

bool IsModelNode( 
   UAModelNodeDescriptor modelNodeDescriptor
)

bool IsModelNode( 
   UAModelNodeDescriptor^ modelNodeDescriptor
)

Parameters

modelNodeDescriptor: Model node descriptor. Identifies the node in OPC UA information model.

Return Value

Returns true if the given node belongs to the model; returns false otherwise.

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	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.

System.ArgumentNullException

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.

Remarks

This method is important for model provider composition.

This method does NOT test whether the node exists in the server!

Requirements

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

Reference

IUAReadOnlyModelProvider Interface
IUAReadOnlyModelProvider Members

Send Documentation Feedback. Technical Support