QuickOPC User's Guide and Reference
EasyDAItemChangedEventHandler<TValue> Delegate



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.Generic Namespace : EasyDAItemChangedEventHandler<TValue> Delegate
The type of item value.
The source of the event.
An EasyDAItemChangedEventArgs<TValue> 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(Of TValue)( _
   ByVal sender As Object, _
   ByVal e As EasyDAItemChangedEventArgs(Of TValue) _
) 
'Usage
 
Dim instance As New EasyDAItemChangedEventHandler(Of TValue)(AddressOf HandlerMethod)
[ComVisible(false)]
public delegate void EasyDAItemChangedEventHandler<TValue>( 
   object sender,
   EasyDAItemChangedEventArgs<TValue> e
)
[ComVisible(false)]
generic<typename TValue>
public delegate void EasyDAItemChangedEventHandler( 
   Object^ sender,
   EasyDAItemChangedEventArgs<TValue^>^ e
)

Parameters

sender
The source of the event.
e
An EasyDAItemChangedEventArgs<TValue> that contains the event data.

Type Parameters

TValue
The type of item value.
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

See Also

Reference

EasyDAItemChangedEventHandler<TValue> Members
OpcLabs.EasyOpc.DataAccess.Generic Namespace