OPC Studio User's Guide and Reference
UANodeId Constructor(UANodeId)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace Namespace > UANodeId Class > UANodeId Constructor : UANodeId Constructor(UANodeId)
Node Id to be copied from. Identifies the node in OPC server's address space.

Because the UANodeId 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 nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the UANodeId Constructor(String) constructor instead.

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

Initializes a new copy of the object.
Syntax
'Declaration
 
Public Function New( _
   ByVal nodeId As UANodeId _
)
'Usage
 
Dim nodeId As UANodeId
 
Dim instance As New UANodeId(nodeId)
public UANodeId( 
   UANodeId nodeId
)
public:
UANodeId( 
   UANodeId^ nodeId
)

Parameters

nodeId
Node Id to be copied from. Identifies the node in OPC server's address space.

Because the UANodeId 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 nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the UANodeId Constructor(String) constructor instead.

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

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.

Remarks

OPC UA node Id, represented by the UANodeId class, directly identifies a node in a server's address space.

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

Reference

UANodeId Class
UANodeId Members
Overload List
OPC UA Node IDs
Namespace indices in OPC UA Node Ids