System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Windows.Forms.Control
            GrapeCity.Framework.Spread.InputMan.CellType.Forms.FrameworkControl
               GrapeCity.Framework.Spread.InputMan.CellType.Views.Windows.ElementContainerControl
                  GrapeCity.Framework.Spread.InputMan.CellType.Forms.ControlBase
                     GrapeCity.Win.Spread.InputMan.CellType.EditBase
                        GrapeCity.Win.Spread.InputMan.CellType.FieldsEditorControl
                           GrapeCity.Win.Spread.InputMan.CellType.GcDateTime
                              GrapeCity.Win.Spread.InputMan.CellType.GcDate
                              GrapeCity.Win.Spread.InputMan.CellType.GcDateTimeEditingControl
                              GrapeCity.Win.Spread.InputMan.CellType.GcTime
                           GrapeCity.Win.Spread.InputMan.CellType.GcIPAddress
                           GrapeCity.Win.Spread.InputMan.CellType.GcMask
                              GrapeCity.Win.Spread.InputMan.CellType.GcAddressBox
                              GrapeCity.Win.Spread.InputMan.CellType.GcPostal
                           GrapeCity.Win.Spread.InputMan.CellType.GcNumber
                           GrapeCity.Win.Spread.InputMan.CellType.GcTimeSpan
                        GrapeCity.Win.Spread.InputMan.CellType.GcCharMask
                        GrapeCity.Win.Spread.InputMan.CellType.GcComboBox
                        GrapeCity.Win.Spread.InputMan.CellType.GcTextBox
                           GrapeCity.Win.Spread.InputMan.CellType.GcTextBoxEditingControl
                     GrapeCity.Win.Spread.InputMan.CellType.GcCalculator
                     GrapeCity.Win.Spread.InputMan.CellType.GcCalendar
                     GrapeCity.Win.Spread.InputMan.CellType.GcListBox
                     GrapeCity.Win.Spread.InputMan.CellType.GcRichTextBox
                  GrapeCity.Framework.Spread.InputMan.CellType.Views.Windows.FrameElementContainer
                     GrapeCity.Framework.Spread.InputMan.CellType.Views.OverflowTip.TransparentFrameElementContainer
                        GrapeCity.Win.Views.ListController.ListOverflowTip.ListOverflowTipFrame
                     GrapeCity.Framework.Spread.InputMan.CellType.Views.Tip.TipFrameElementContainer
                        GrapeCity.Win.Views.ListController.ListToolTip.ListToolTipFrame
                     GrapeCity.Win.Views.ComboDropDownDialog.ComboDropDownFrameWindow
                     GrapeCity.Win.Views.ComboEditorView.DropDownEditorFrame
                     GrapeCity.Win.Views.DateView.DateDropDownHolder.DateFrameElmentContainer
                     GrapeCity.Win.Views.NumberDropDownDialog.NumberFrameElmentContainer
                     GrapeCity.Win.Views.NumberPopupHolder.NumberPopupFrame
                     GrapeCity.Win.Views.TouchSelectionGripperHolder.TouchSelectionGripperFrameElementContainer

Reference

GrapeCity.Win.PluginInputMan Assembly