| Class | Description |
| BackButtonSettings | Exposes properties for the C1BackstageView drop-down back button. |
| BackstageViewTab | Represents a tab element in a C1BackstageView component. |
| C1BackstageView | The main button at the top-left corner of the ribbon, which presents a drop-down menu of the full size of the application that contains functionality previously found in the File menu. |
| C1Ribbon | The Ribbon control. |
| C1RibbonForm | Represents the Ribbon Form and has been calculated to display the C1Ribbon and C1StatusBar controls. The Ribbon Form allows the Ribbon to display its items in the TitleBar area. |
| C1StatusBar | Represents a Status Bar control to be used with a C1Ribbon control in place of a standard C1StatusBar. |
| ContextMenuPopupEventArgs | Provides data for the ContextMenuPopup event. |
| ControlHostFromXmlNodeEventArgs | Provides data for the ControlHostFromXmlNode event. |
| DrawItemEventArgs | Provides data for the DrawItem event. |
| ElementToolTipEventArgs | Provides data for the ElementToolTipShowing event. |
| GalleryEventArgs | Provides data for Ribbon gallery events. |
| GroupDeserializedEventArgs | Provides data for the GroupDeserialized event. |
| ItemDeserializedEventArgs | Provides data for the ItemDeserialized event. |
| MeasureItemEventArgs | Provides data for the MeasureItem event. |
| MoreButtonSettings | Exposes properties of the C1Ribbon the more button from simplified view of ribbon. |
| PrepareDateTimeFormatEventArgs | Provides data for the PrepareDateTimeFormat event. |
| PrepareNumberFormatEventArgs | Provides data for the PrepareNumberFormat event. |
| QatCustomButtonCollection | Represents a collection of the RibbonQat menu RibbonButtons. |
| QatItemsChangedEventArgs | Provides data for the ItemsChanged event. |
| RibbonApplicationMenu | The main button at the top-left corner of the ribbon, which presents a drop-down menu (RibbonApplicationMenu) that contains functionality previously found in the File menu. |
| RibbonBottomToolBar | Toolbar that appears below the Ribbon. |
| RibbonButton | Represents a button element in a C1Ribbon control. |
| RibbonCheckBox | Represents a check box element in a C1Ribbon control. |
| RibbonColorPalette | Class that defines named groups of colors. |
| RibbonColorPaletteEntry | Class that contains information about the color, its name and description. |
| RibbonColorPicker | Represents a color picker element in a C1Ribbon control. |
| RibbonColorPickerItem | Represents a color palette used to build custom color picker elements. |
| RibbonComboBox | Represents a combo box element in a C1Ribbon control. |
| RibbonConfigToolBar | Customizable toolbar with frequently used buttons and other elements. |
| RibbonContextualTabGroup | Implements a contextual tab group. |
| RibbonControlHost | Represents a control host in a C1Ribbon control. |
| RibbonDatePicker | Represents a date-picker element in C1Ribbon and C1StatusBar controls. |
| RibbonDropDownBase | RibbonDropDownBase is a RibbonItem that can contain other Ribbon items in the drop-down portion. It serves as a base class for RibbonComboBox, RibbonApplicationMenu, RibbonMenu, and RibbonSplitButton. |
| RibbonEditBox | Represents a text box element in a C1Ribbon control. |
| RibbonEventArgs | Provides data for C1Ribbon events. |
| RibbonFontComboBox | Represents a font picker element in a C1Ribbon control. |
| RibbonGallery | Button that shows a drop-down gallery. |
| RibbonGalleryItem | Button element in a drop-down gallery. |
| RibbonGalleryItemCollection | Represents a collection of RibbonGalleryItem objects. |
| RibbonGroup | Represents an item group on a RibbonTab. |
| RibbonGroupCollection | Represents a collection of RibbonGroup objects in a RibbonTab. |
| RibbonIconItem | Serves as a base class for all ribbon components that support icons. |
| RibbonItem | Serves as a base class for all Ribbon components such as RibbonButton, RibbonComboBox, and so on. |
| RibbonItemCollection | Represents a collection of RibbonItem objects. |
| RibbonItemCollectionBase | Serves as a base class for RibbonItem collections such as RibbonItemCollection and RibbonGalleryItemCollection |
| RibbonItemContainer | RibbonItemContainer is a RibbonItem that can contain other Ribbon items. It serves as a base class for RibbonToolBar, RibbonToggleGroup, RibbonQat, RibbonConfigToolBar, RibbonTopToolBar, and RibbonBottomToolBar. |
| RibbonLabel | Label in a C1Ribbon or C1StatusBar control. |
| RibbonListItem | Represents an Item in a recently used list. |
| RibbonMenu | Button that shows a drop-down menu. |
| RibbonNumericBox | Represents a numeric box element in C1Ribbon and C1StatusBar controls. |
| RibbonProgressBar | Represents a Progress Bar item. |
| RibbonQat | Represents the Quick Access Toolbar (QAT) in a C1Ribbon control. |
| RibbonQatGroupButton | Button that shows a drop-down menu. |
| RibbonQatItemCollection | Represents a collection of RibbonItem objects in the QAT. |
| RibbonQatLinkCollection | This class is for internal use only. |
| RibbonRadioButton | Represents a radio button element in a C1Ribbon control. |
| RibbonSeparator | Separator element between groups of items in groups, toolbars, or drop-down elements. |
| RibbonSplitButton | Element that combines a regular button and a drop-down. |
| RibbonStyle | A customizable set of appearance settings. |
| RibbonTab | Represents a Ribbon tab. |
| RibbonTabCollection | Represents a collection of RibbonTabs. |
| RibbonTabGroupCollection | Represents a collection of RibbonContextualTabGroups. |
| RibbonTextBox | Represents a text box element in a C1Ribbon control. |
| RibbonTimePicker | Represents a time-picker element in C1Ribbon and C1StatusBar controls. |
| RibbonToggleButton | Button that works like a check box. When used within a toggle group, acts as a radio button (checking one unchecks all others). |
| RibbonToggleGroup | Container for other RibbonItem elements. Any RibbonToggleButtons contained in this element behave like radio buttons (checking one unchecks all others). |
| RibbonToolBar | Styled container for other RibbonItem elements. |
| RibbonTopToolBar | Toolbar beside the window system buttons. |
| RibbonTrackBar | TrackBar element in a C1Ribbon control. |
| SelectedViewChangedEventArgs | Provides data for the IGalleryItemsPanel.SelectedViewChanged event. |
| ShouldDrawFontEventArgs | Provides data for the ShouldDrawFont event. |
| SpinButtonClickEventArgs | Provides data for the SpinButtonClick event. |
| StyleBrushSet | Represents the set of known brushes that can be referenced from style elements. |
| StyleColorSet | Represents the set of known colors that can be referenced from style elements. |
| StyleConstSet | Represents the set of integer constants that can be referenced from style elements. |
| StyleFlagSet | Represents the set of boolean constants that can be referenced from style elements. |
| StyleFontDelta | Represents the font delta that can be applied to the base font. |
| StyleFontSet | Represents the set of fonts that can be referenced from style elements. |
| StyleGlyphSet | Represents the set of known glyphs that can be referenced from style elements. |
| TabDeserializedEventArgs | Provides data for the TabDeserialized event. |
| TabGroupDeserializedEventArgs | Provides data for the TabGroupDeserialized event. |
| ToolTipLinkClickedEventArgs | Provides data for the ToolTipLinkClicked event. |
| ToolTipPositionEventArgs | Provides data for the PopupToolTip event. |
| ToolTipSettings | Exposes properties of the C1Ribbon built-in tooltip. |
| UpdatingItemFontEventArgs | Provides data for UpdatingItemFont event. |
| UpdatingItemStyleEventArgs | Provides data for UpdatingItemStyle event. |