System.Object
   Intersoft.Client.Framework.StyleSelector
      Intersoft.Client.UI.Aqua.UXStackMenu.UXStackMenuStyleSelector
   Intersoft.Client.UI.Aqua.UXButtonItems
      Intersoft.Client.UI.Aqua.UXButton
         Intersoft.Client.Framework.ISButton
            System.Windows.Controls.Button
               System.Windows.Controls.Primitives.ButtonBase
                  System.Windows.Controls.ContentControl
                     System.Windows.Controls.Control
                        System.Windows.FrameworkElement
                           System.Windows.UIElement
                              System.Windows.DependencyObject
                                 Intersoft.Client.UI.Aqua.UXStackMenu.UXStackButton
   Intersoft.Client.UI.Aqua.UXMenuItem
      Intersoft.Client.Framework.ISHeaderedSelectionControl
         Intersoft.Client.Framework.ISHeaderedItemsControl
            Intersoft.Client.Framework.HeaderedItemsControl
               System.Windows.Controls.ItemsControl
                  System.Windows.Controls.Control
                     System.Windows.FrameworkElement
                        System.Windows.UIElement
                           System.Windows.DependencyObject
                              Intersoft.Client.UI.Aqua.UXStackMenu.UXStackItem
   Intersoft.Client.UI.Controls.Interactivity.ISDragableSelectionControl
      Intersoft.Client.Framework.ISSelectionControl
         Intersoft.Client.Framework.ISItemsControl
            System.Windows.Controls.ItemsControl
               System.Windows.Controls.Control
                  System.Windows.FrameworkElement
                     System.Windows.UIElement
                        System.Windows.DependencyObject
                           Intersoft.Client.UI.Aqua.UXStackMenu.UXStackMenu

Reference

Intersoft.Client.UI.Aqua.UXStackMenu Assembly