WpfWatermarkTextBox.Behaviors.WatermarkComboBoxBehavior.GetWatermarkComboBoxBehavior C# (CSharp) 메소드

        private static WatermarkComboBoxBehavior GetWatermarkComboBoxBehavior(DependencyObject obj)
        {
            return (WatermarkComboBoxBehavior)obj.GetValue(WatermarkComboBoxBehaviorProperty);
        }