Protected Overridable Sub FirePropertyChanged( _
   ByVal propertyName As String, _
   ByVal oldValue As Object, _
   ByVal newValue As Object _
) 

Dim instance As BaseSparkline
Dim propertyName As String
Dim oldValue As Object
Dim newValue As Object
 
instance.FirePropertyChanged(propertyName, oldValue, newValue)

protected virtual void FirePropertyChanged( 
   string propertyName,
   object oldValue,
   object newValue
)