OPC Studio User's Guide and Reference
DAVtqResult Constructor(Object,Exception,DAVtq)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess.OperationModel Namespace > DAVtqResult Class > DAVtqResult Constructor : DAVtqResult Constructor(Object,Exception,DAVtq)
The state object specified when the operation was invoked.

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

The reason of the failure of the operation.

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

The OpcLabs.EasyOpc.DataAccess.DAVtq (value, timestamp and quality) that is a successful result of the operation.

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

Initializes a new instance of the class, with given state object, exception, and OpcLabs.EasyOpc.DataAccess.DAVtq.
Syntax
'Declaration
 
Public Function New( _
   ByVal state As Object, _
   ByVal exception As Exception, _
   ByVal vtq As DAVtq _
)
'Usage
 
Dim state As Object
Dim exception As Exception
Dim vtq As DAVtq
 
Dim instance As New DAVtqResult(state, exception, vtq)
public DAVtqResult( 
   object state,
   Exception exception,
   DAVtq vtq
)
public:
DAVtqResult( 
   Object^ state,
   Exception^ exception,
   DAVtq^ vtq
)

Parameters

state
The state object specified when the operation was invoked.

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

exception
The reason of the failure of the operation.

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

vtq
The OpcLabs.EasyOpc.DataAccess.DAVtq (value, timestamp and quality) that is a successful result of the operation.

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

Exceptions
ExceptionDescription

One of the arguments provided to a method is not valid.

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