Base class for all command bars.
A command bar implements functionality of  control which can be either floated in host popup window, or docked to edge of parent form. In docked state a command bar object resides on "dock row". Also, a command bar control can be placed on another control. A command bar object must be added to  a CommandBarManager component in order to enable docking and floating capabilities.

A command bar object fires the CommandSent event, which notifies subscribers that a specific command assigned to one of elements of a command bar should be executed.
You have to inherit from this class if you wish to create custom command bars.