QuickOPC User's Guide and Reference
EasyDAItemChangedEventHandler Delegate



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace : EasyDAItemChangedEventHandler Delegate
The source of the event.
An OpcLabs.EasyOpc.DataAccess.OperationModel.EasyDAItemChangedEventArgs that contains the event data.
Represents the method that will handle an event raised for every significant change in a subscribed OPC item.
Syntax
'Declaration
 
<ComVisibleAttribute(False)>
Public Delegate Sub EasyDAItemChangedEventHandler( _
   ByVal sender As Object, _
   ByVal e As EasyDAItemChangedEventArgs _
) 
'Usage
 
Dim instance As New EasyDAItemChangedEventHandler(AddressOf HandlerMethod)
[ComVisible(false)]
public delegate void EasyDAItemChangedEventHandler( 
   object sender,
   EasyDAItemChangedEventArgs e
)
[ComVisible(false)]
public delegate void EasyDAItemChangedEventHandler( 
   Object^ sender,
   EasyDAItemChangedEventArgs^ e
)

Parameters

sender
The source of the event.
e
An OpcLabs.EasyOpc.DataAccess.OperationModel.EasyDAItemChangedEventArgs that contains the event data.
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