Connectivity Software User's Guide and Reference
Callback Property (EasySparkplugPayloadSubscriptionArguments)



OpcLabs.EasySparkplug Assembly > OpcLabs.EasySparkplug.OperationModel Namespace > EasySparkplugPayloadSubscriptionArguments Class : Callback Property
A callback method to be invoked for each event notification.
Syntax
'Declaration
 
<JetBrains.Annotations.CanBeNullAttribute()>
Public Property Callback As EasySparkplugPayloadNotificationEventHandler
'Usage
 
Dim instance As EasySparkplugPayloadSubscriptionArguments
Dim value As EasySparkplugPayloadNotificationEventHandler
 
instance.Callback = value
 
value = instance.Callback
[JetBrains.Annotations.CanBeNull()]
public EasySparkplugPayloadNotificationEventHandler Callback {get; set;}
[JetBrains.Annotations.CanBeNull()]
public:
property EasySparkplugPayloadNotificationEventHandler^ Callback {
   EasySparkplugPayloadNotificationEventHandler^ get();
   void set (    EasySparkplugPayloadNotificationEventHandler^ value);
}

Property Value

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

The default value of this property is null.

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

 

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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