'Declaration
 
Public Function New( _
   ByVal callback As OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeNotificationEventHandler(Of TValue), _
   ByVal state As Object, _
   ByVal endpointDescriptor As UAEndpointDescriptor, _
   ByVal nodeDescriptor As UANodeDescriptor, _
   ByVal monitoringParameters As UAMonitoringParameters, _
   ByVal subscriptionParameters As UASubscriptionParameters _
)

'Usage
 
Dim callback As OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeNotificationEventHandler(Of TValue)
Dim state As Object
Dim endpointDescriptor As UAEndpointDescriptor
Dim nodeDescriptor As UANodeDescriptor
Dim monitoringParameters As UAMonitoringParameters
Dim subscriptionParameters As UASubscriptionParameters
 
Dim instance As New EasyUADataChangeArguments(Of TValue)(callback, state, endpointDescriptor, nodeDescriptor, monitoringParameters, subscriptionParameters)

public EasyUADataChangeArguments<TValue>( 
   OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeNotificationEventHandler<TValue> callback,
   object state,
   UAEndpointDescriptor endpointDescriptor,
   UANodeDescriptor nodeDescriptor,
   UAMonitoringParameters monitoringParameters,
   UASubscriptionParameters subscriptionParameters
)

public:
EasyUADataChangeArguments<TValue>( 
   OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeNotificationEventHandler<TValue^>^ callback,
   Object^ state,
   UAEndpointDescriptor^ endpointDescriptor,
   UANodeDescriptor^ nodeDescriptor,
   UAMonitoringParameters^ monitoringParameters,
   UASubscriptionParameters^ subscriptionParameters
)

Parameters

callback

A callback method to be invoked for each significant monitored item change.

state

User-defined state object.

endpointDescriptor

Endpoint descriptor. Identifies the OPC-UA server.

nodeDescriptor

Node descriptor. Identifies the node in OPC server's address space.

monitoringParameters

Contains monitoring parameters (such as the sampling interval, and optional data change filter).

subscriptionParameters

Contains subscription parameters (such as the publishing interval).

If callback is a null reference, only the OpcLabs.EasyOpc.UA.EasyUAClientCore.DataChangeNotification event is generated, and no callback method is invoked.

You can obtain nodeDescriptor e.g. by calling one of the browsing methods on OpcLabs.EasyOpc.UA.EasyUAClientCore object.

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