UANamedNodePath Class

An OPC UA named node path (a base node descriptor with string path elements).

Object Model

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ComVisibleAttribute(False)>
<CLSCompliantAttribute(True)>
<TypeConverterAttribute(System.ComponentModel.ExpandableObjectConverter)>
<ValueControlAttribute("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=False, 
   Export=True, 
   PageId=10001)>
<SerializableAttribute()>
Public Class UANamedNodePath 
   Inherits OpcLabs.BaseLib.Info
   Implements LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

'Usage
 
Dim instance As UANamedNodePath

[ComVisible(false)]
[CLSCompliant(true)]
[TypeConverter(System.ComponentModel.ExpandableObjectConverter)]
[ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=false, 
   Export=true, 
   PageId=10001)]
[Serializable()]
public class UANamedNodePath : OpcLabs.BaseLib.Info, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

[ComVisible(false)]
[CLSCompliant(true)]
[TypeConverter(System.ComponentModel.ExpandableObjectConverter)]
[ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=false, 
   Export=true, 
   PageId=10001)]
[Serializable()]
public ref class UANamedNodePath : public OpcLabs.BaseLib.Info, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

Remarks

This class is similar to UABrowsePath, but with several important differences:

The names of the elements on the path are not browse names (OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedName), but simple strings. As such, they do not contain the namespace index or URI. The namespace is implied by the context; in most cases (such as when the UANamedNodePath is used for navigation inside OPC UA file system), the target namespace does not matter at all.
The types of references that lead from one node on the path to another are not specified in the object (in UABrowsePath, the type of reference, together with parameters selecting how the reference should be matched, are specified in each UABrowsePathElement). The accepted types of references are implied by the context. For example, when the UANamedNodePath is used for navigation inside OPC UA file system, implied is a forward reference of type OpcLabs.EasyOpc.UA.AddressSpace.Standard.UAReferenceTypeIds.Organizes, or its subtype.
The base (starting) node of the path is given by a OpcLabs.EasyOpc.UA.UANodeDescriptor, and not OpcLabs.EasyOpc.UA.AddressSpace.UANodeId (the node descriptor specified a node Id, a browse path, or both).
It is simpler.

Inheritance Hierarchy

System.Object
   OpcLabs.BaseLib.Object2
      OpcLabs.BaseLib.Info
         OpcLabs.EasyOpc.UA.Navigation.UANamedNodePath

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

UANamedNodePath Members
OpcLabs.EasyOpc.UA.Navigation Namespace
UANamedNodeDescriptor Class

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