public class WatermarkBehavior : System.Windows.Interactivity.Behavior<ComboBox>, System.Windows.Interactivity.IAttachedObject, System.Windows.Media.Animation.IAnimatable
Public Class WatermarkBehavior Inherits System.Windows.Interactivity.Behavior(Of ComboBox) Implements System.Windows.Interactivity.IAttachedObject, System.Windows.Media.Animation.IAnimatable