What is a CommandBar?

The Essential Tools CommandBars is a framework that allows you to create Visual Studio.NET type dockable toolbars, rebars, and statusbars in your Windows Forms applications.

A CommandBar, similar to Win32/MFC control bars, is purely a container control that is responsible only for its layout state and it is the client window, such as a toolbar, statusbar or any other Windows Forms control, that provides the CommandBar with its functional identity.

The CommandBarController class serves as a form-scope controller for all the CommandBars and implements the API and the requisite design-time support for creating and working with CommandBars.