# Structure

This article describes the inner structure and organization of the elements which build **RadOfficeNavigationBar**.

![WinForms RadOfficeNavigationBar Structure](https://www.telerik.com/products/winforms/documentation/assets/52ac59650adb43ee7f1387e613f3bc31/officenavigationbar-structure001.png)

* **RadOfficeNavigationBarElement** - the main element in **RadOfficeNavigationBar**.
  * **OfficeNavigationBarItemContainer** - holds the items and their content area.
    * **OfficeNavigationBarItemLayout** - represents the StripViewItemContainer that holds all the items.
      * **RadOfficeNavigationBarItem** - represents a separate office item.
      * **RadOfficeNavigationBarOverflowItem** - represents the options/ overflow button ("**...**") that allows the user navigate through the hidden items in the navigation bar. When you click the item, a RadContextMenuDropDown is shown.

    * **RadPageViewContentAreaElement** - represents the content area that is relevant to the currently selected office item.

# Elements Hierarchy

![WinForms RadOfficeNavigationBar Elements Hierarchy](https://www.telerik.com/products/winforms/documentation/assets/ba28c25d47039d62e9b2874c6f26764f/officenavigationbar-structure002.png)

## See Also

* [View Modes](https://www.telerik.com/products/winforms/documentation/controls/officenavigationbar/view-modes)
* [Design Time](https://www.telerik.com/products/winforms/documentation/controls/officenavigationbar/design-time)
* [Getting Started](https://www.telerik.com/products/winforms/documentation/controls/officenavigationbar/getting-started)