OPC Studio User's Guide and Reference
UANamedNodeDescriptor Constructor(UANamedNodePath,String,UANodeDescriptor)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Navigation Namespace > UANamedNodeDescriptor Class > UANamedNodeDescriptor Constructor : UANamedNodeDescriptor Constructor(UANamedNodePath,String,UANodeDescriptor)
The named node path.

Because the UANamedNodePath has an implicit conversion from OpcLabs.EasyOpc.UA.UANodeDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.UANodeDescriptor (containing the base and only node in the named node path) in place of this parameter, and the corresponding OPC UA named node path will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the UANamedNodePath.FromUANodeDescriptor static method instead.

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

The name of the final node.

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

The final node descriptor.

Because the OpcLabs.EasyOpc.UA.UANodeDescriptor has implicit conversions from OpcLabs.EasyOpc.UA.AddressSpace.UANodeId, OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement, UABrowsePath and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object (representing the Id of the OPC UA node), a node element object (from OPC UA browsing), UABrowsePath object (representing OPC UA absolute browse path), or a string (with expanded node Id text) in place of this parameter, and the corresponding node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.UANodeDescriptor.FromString, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUABrowsePath, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeElement or OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeId static method instead.

If you are using OPC Wizard (for server development), an implicit conversion from OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode can be used in the same way to simply pass the server node in place of this parameter, which will use its OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode.EffectiveNodeDescriptor property for the operation.

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

Initializes a new instance, with given named node path and (final) node name, and final node descriptor.
Syntax
'Declaration
 
Public Function New( _
   ByVal namedNodePath As UANamedNodePath, _
   ByVal nodeName As String, _
   ByVal finalNodeDescriptor As UANodeDescriptor _
)
'Usage
 
Dim namedNodePath As UANamedNodePath
Dim nodeName As String
Dim finalNodeDescriptor As UANodeDescriptor
 
Dim instance As New UANamedNodeDescriptor(namedNodePath, nodeName, finalNodeDescriptor)

Parameters

namedNodePath
The named node path.

Because the UANamedNodePath has an implicit conversion from OpcLabs.EasyOpc.UA.UANodeDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.UANodeDescriptor (containing the base and only node in the named node path) in place of this parameter, and the corresponding OPC UA named node path will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the UANamedNodePath.FromUANodeDescriptor static method instead.

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

nodeName
The name of the final node.

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

finalNodeDescriptor
The final node descriptor.

Because the OpcLabs.EasyOpc.UA.UANodeDescriptor has implicit conversions from OpcLabs.EasyOpc.UA.AddressSpace.UANodeId, OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement, UABrowsePath and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object (representing the Id of the OPC UA node), a node element object (from OPC UA browsing), UABrowsePath object (representing OPC UA absolute browse path), or a string (with expanded node Id text) in place of this parameter, and the corresponding node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.UANodeDescriptor.FromString, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUABrowsePath, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeElement or OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeId static method instead.

If you are using OPC Wizard (for server development), an implicit conversion from OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode can be used in the same way to simply pass the server node in place of this parameter, which will use its OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode.EffectiveNodeDescriptor property for the operation.

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

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