

'宣言 Public MustInherit Class RibbonDropDownBase Inherits RibbonIconItem
public abstract class RibbonDropDownBase : RibbonIconItem
System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         C1.Win.Ribbon.RibbonItem
            C1.Win.Ribbon.RibbonIconItem
               C1.Win.Ribbon.RibbonDropDownBase
                  C1.Win.Ribbon.C1BackstageView
                  C1.Win.Ribbon.RibbonApplicationMenu
                  C1.Win.Ribbon.RibbonComboBox
                  C1.Win.Ribbon.RibbonDatePicker
                  C1.Win.Ribbon.RibbonGallery
                  C1.Win.Ribbon.RibbonMenu
                  C1.Win.Ribbon.RibbonSplitButton