HasSubtype Method

The name of the target node.

Because the OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedName has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the qualified name) in place of this parameter, and the corresponding OPC UA qualified name will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedName.UAQualifiedName Constructor(String) constructor instead.

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

Creates a new OPC-UA browse path element with given target name, specifying OpcLabs.EasyOpc.UA.AddressSpace.Standard.UAReferenceTypeIds.HasSubtype reference, for following in forward direction, and including subtypes.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<NotNullAttribute()>
Public Shared Function HasSubtype( _
   ByVal targetName As UAQualifiedName _
) As UABrowsePathElement

'Usage
 
Dim targetName As UAQualifiedName
Dim value As UABrowsePathElement
 
value = UABrowsePathElement.HasSubtype(targetName)

[NotNull()]
public static UABrowsePathElement HasSubtype( 
   UAQualifiedName targetName
)

[NotNull()]
public:
static UABrowsePathElement^ HasSubtype( 
   UAQualifiedName^ targetName
)

Parameters

targetName

The name of the target node.

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

Return Value

Returns the newly created instance.

This method never returns null (Nothing in Visual Basic).

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.

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

UABrowsePathElement Class
UABrowsePathElement Members

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.