Vtq Property (EasyDAItemChangedEventArgs)

Gets the current (new) OpcLabs.EasyOpc.DataAccess.DAVtq (value, timestamp and quality) of the OPC item. Null reference when System.Exception is not null.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Property Vtq As DAVtq

'Usage
 
Dim instance As EasyDAItemChangedEventArgs
Dim value As DAVtq
 
instance.Vtq = value
 
value = instance.Vtq

public DAVtq Vtq {get; set;}

public:
property DAVtq^ Vtq {
   DAVtq^ get();
   void set (    DAVtq^ value);
}

Property Value

This value of this property can be null (Nothing in Visual Basic).

The default value of this property is null.

Exceptions

Exception	Description
System.ArgumentException	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.

Exception

Description

System.ArgumentException

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.

Remarks

The getter method of this property is pure, i.e. it does not have observable side effects.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

EasyDAItemChangedEventArgs Class
EasyDAItemChangedEventArgs Members

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