OPC Studio User's Guide and Reference
RegisterNode Method (_EasyUAClientNodeRegistration)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Services.ComTypes Namespace > _EasyUAClientNodeRegistration Interface : RegisterNode Method

The value represents an OPC UA endpoint descriptor string. Any string can be passed to this parameter (i.e. will not cause System.ArgumentException), but not all values make sense and will work when an operation using them is attempted. The OPC UA endpoint descriptor string is typically the URL of the server endpoint.

The value of this parameter can be null (Nothing in Visual Basic).

The value of this parameter can be null (Nothing in Visual Basic).

Registers the node specified by an endpoint descriptor and a node descriptor.
Syntax
'Declaration
 
Function RegisterNode( _
   ByVal endpointDescriptorString As String, _
   ByVal nodeDescriptorString As String _
) As Integer
'Usage
 
Dim instance As _EasyUAClientNodeRegistration
Dim endpointDescriptorString As String
Dim nodeDescriptorString As String
Dim value As Integer
 
value = instance.RegisterNode(endpointDescriptorString, nodeDescriptorString)

Parameters

endpointDescriptorString

The value represents an OPC UA endpoint descriptor string. Any string can be passed to this parameter (i.e. will not cause System.ArgumentException), but not all values make sense and will work when an operation using them is attempted. The OPC UA endpoint descriptor string is typically the URL of the server endpoint.

The value of this parameter can be null (Nothing in Visual Basic).

nodeDescriptorString

The value of this parameter can be null (Nothing in Visual Basic).

Return Value

Returns an integer handle that can be used for unregistering the node.
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

If you have more nodes to register, it is strongly recommended that you use the OpcLabs.EasyOpc.UA.Services.IEasyUAClientNodeRegistration.RegisterMultipleNodes method instead, for performance reasons.

The method may perform the registration asynchronously.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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