Symbol.ValueChanged Event
Occurs when the (Primitive) value of the IValueSymbol has changed.
          Namespace:  TwinCAT.Ads.TypeSystem
Assembly:  TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 4.3.0.0
Syntax
C#
public event EventHandler<ValueChangedArgs> ValueChanged
VB
Public Event ValueChanged As EventHandler(Of ValueChangedArgs)