OPC Studio User's Guide and Reference
AttributeData Property (_EasyUADataChangeNotificationEventArgs)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.OperationModel.ComTypes Namespace > _EasyUADataChangeNotificationEventArgs Interface : AttributeData Property
Attribute data: the value of an attribute, together with status code and timestamps.
Syntax
'Declaration
 
<CanBeNullAttribute()>
Property AttributeData As UAAttributeData
'Usage
 
Dim instance As _EasyUADataChangeNotificationEventArgs
Dim value As UAAttributeData
 
instance.AttributeData = value
 
value = instance.AttributeData
[CanBeNull()]
UAAttributeData AttributeData {get; set;}
[CanBeNull()]
property UAAttributeData^ AttributeData {
   UAAttributeData^ get();
   void set (    UAAttributeData^ value);
}

Property Value

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

The default value of this property is null.

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.

Remarks
This property is non-null only if the System.Exception is null.

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

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

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