OPC Studio User's Guide and Reference
GetValueRank Method (UAEmptyReadOnlyModelProvider)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.InformationModel Namespace > UAEmptyReadOnlyModelProvider Class : GetValueRank Method
Model node descriptor. Identifies the node in OPC UA information model.
Interrogates the information model for the OPC-UA value rank of the given node.
Syntax
'Declaration
 
Public Function GetValueRank( _
   ByVal modelNodeDescriptor As UAModelNodeDescriptor _
) As ValueResult(Of Integer)
'Usage
 
Dim instance As UAEmptyReadOnlyModelProvider
Dim modelNodeDescriptor As UAModelNodeDescriptor
Dim value As ValueResult(Of Integer)
 
value = instance.GetValueRank(modelNodeDescriptor)

Parameters

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

Return Value

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.

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