OnReadAttributeDataChanged Method

Called when the value of the ReadAttributeData property has changed.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Protected Overridable Sub OnReadAttributeDataChanged( _
   ByVal oldValue As UAAttributeData _
)

'Usage
 
Dim instance As UADataVariable
Dim oldValue As UAAttributeData
 
instance.OnReadAttributeDataChanged(oldValue)

protected virtual void OnReadAttributeDataChanged( 
   UAAttributeData oldValue
)

protected:
virtual void OnReadAttributeDataChanged( 
   UAAttributeData^ oldValue
)

Parameters

oldValue: The old value of the property.
The value of this parameter cannot be null (Nothing in Visual Basic).

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	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.

System.ArgumentNullException

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

Reference

UADataVariable Class
UADataVariable Members
ReadAttributeData Property

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