OPC Studio User's Guide and Reference
DANodeDescriptor Constructor(DANodeElement)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DANodeDescriptor Class > DANodeDescriptor Constructor : DANodeDescriptor Constructor(DANodeElement)
The node element object - contains information gathered about a node in OPC server's address space.

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

Initializes a new instance of the class, from specified node element.
Syntax
'Declaration
 
Public Function New( _
   ByVal nodeElement As DANodeElement _
)
'Usage
 
Dim nodeElement As DANodeElement
 
Dim instance As New DANodeDescriptor(nodeElement)
public DANodeDescriptor( 
   DANodeElement nodeElement
)
public:
DANodeDescriptor( 
   DANodeElement^ nodeElement
)

Parameters

nodeElement
The node element object - contains information gathered about a node in OPC server's address space.

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

In languages that support implicit conversions (such as C# or VB.NET), in many cases you do not have call this constructor explicitly. When indicated, a call to an available equivalent implicit conversion operator will be created by the compiler automatically.

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