System.Object
   C1.WPF.Grid.GridControlAdapter
      C1.WPF.Grid.GridCellFactory
         C1.WPF.Pivot.FlexPivotGrid.FlexPivotCellFactory
   C1.WPF.Pivot.FilterItem
   C1.WPF.Pivot.PivotPrintManager
   C1.WPF.Pivot.ReportOptions
   C1.WPF.Pivot.UndoStack
   C1.WPF.Pivot.ValueLabel
   System.EventArgs
      C1.WPF.Pivot.GroupCellEventArgs
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     C1.WPF.Core.C1View
                        C1.WPF.Grid.C1GridControl
                           C1.WPF.Grid.FlexGrid
                              C1.WPF.Pivot.FlexPivotGrid
                     C1.WPF.Pivot.C1FormatEditor
                     C1.WPF.Pivot.ConditionalFieldStyleEditor
                     C1.WPF.Pivot.CustomFilterEditor
                     C1.WPF.Pivot.FieldStyleEditor
                     C1.WPF.Pivot.FlexPivotChart
                     C1.WPF.Pivot.FlexPivotPage
                     C1.WPF.Pivot.FlexPivotPanel
                     C1.WPF.Pivot.PivotContentOptions
                     C1.WPF.Pivot.PivotFieldEditor
                     C1.WPF.Pivot.PivotFilterEditor
                     C1.WPF.Pivot.PivotHeaderOptions
                     C1.WPF.Pivot.PivotMarginOptions
                     C1.WPF.Pivot.PivotReportOptions
                     C1.WPF.Pivot.PrintPageTemplate
                     C1.WPF.Pivot.TopNFilterEditor
                  System.Windows.Controls.Panel
                     System.Windows.Controls.Grid
                        C1.WPF.Pivot.DraggableItem

Reference

C1.WPF.Pivot Assembly