OPC Studio User's Guide and Reference
Callback Property (EasyUASubscribeDataSetFieldArguments)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.OperationModel Namespace > EasyUASubscribeDataSetFieldArguments Class : Callback Property
A method that will be called for every dataset message field received.
Syntax
'Declaration
 
<NotNullAttribute()>
<XmlIgnoreAttribute()>
Public Property Callback As EasyUADataSetFieldMessageEventHandler
'Usage
 
Dim instance As EasyUASubscribeDataSetFieldArguments
Dim value As EasyUADataSetFieldMessageEventHandler
 
instance.Callback = value
 
value = instance.Callback
[NotNull()]
[XmlIgnore()]
public EasyUADataSetFieldMessageEventHandler Callback {get; set;}

Property Value

The value of this property cannot be null (Nothing in Visual Basic).

Remarks

The callback is required to be non-null since this is only used with callbacks, not events.

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