Connectivity Software User's Guide and Reference
UADataVariableConversionErrorEventArgs Constructor(UAServerOperationContext,UADataVariable,UADataVariableConversionAction,UAServiceResult)



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.OperationModel Namespace > UADataVariableConversionErrorEventArgs Class > UADataVariableConversionErrorEventArgs Constructor : UADataVariableConversionErrorEventArgs Constructor(UAServerOperationContext,UADataVariable,UADataVariableConversionAction,UAServiceResult)
The server operation context associated with the conversion error.

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

The data variable for which the conversion error occurred.

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

Describes where the conversion error has occurred (Read, Write, or Update).
The OPC UA service result describing the failed conversion.

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

Initializes a new instance of the class, specifying individual properties.
Syntax
'Declaration
 
Public Function New( _
   ByVal serverOperationContext As UAServerOperationContext, _
   ByVal dataVariable As UADataVariable, _
   ByVal action As UADataVariableConversionAction, _
   ByVal serviceResult As UAServiceResult _
)
'Usage
 
Dim serverOperationContext As UAServerOperationContext
Dim dataVariable As UADataVariable
Dim action As UADataVariableConversionAction
Dim serviceResult As UAServiceResult
 
Dim instance As New UADataVariableConversionErrorEventArgs(serverOperationContext, dataVariable, action, serviceResult)

Parameters

serverOperationContext
The server operation context associated with the conversion error.

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

dataVariable
The data variable for which the conversion error occurred.

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

action
Describes where the conversion error has occurred (Read, Write, or Update).
serviceResult
The OPC UA service result describing the failed conversion.

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