Connectivity Software User's Guide and Reference
UADataVariableReadEventArgs Constructor(UAServerOperationContext,UADataVariable)



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.OperationModel Namespace > UADataVariableReadEventArgs Class > UADataVariableReadEventArgs Constructor : UADataVariableReadEventArgs Constructor(UAServerOperationContext,UADataVariable)
The context of the server operation.

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

The data variable being processed.

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

Initializes a new instance of the class, with given data variable.
Syntax
'Declaration
 
Public Function New( _
   ByVal serverOperationContext As UAServerOperationContext, _
   ByVal dataVariable As UADataVariable _
)
'Usage
 
Dim serverOperationContext As UAServerOperationContext
Dim dataVariable As UADataVariable
 
Dim instance As New UADataVariableReadEventArgs(serverOperationContext, dataVariable)

Parameters

serverOperationContext
The context of the server operation.

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

dataVariable
The data variable being processed.

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.

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