This area is provided to contain dockable toolbars, such as the default toolbar created for the application.
提供此区域是为了放置可停靠的工具栏，如为应用程序创建的默认工具栏。
2
The application wizard supplies standard menus and, if you choose the Dockabletoolbar option, a set of toolbar buttons for the commands.
应用程序向导提供标准菜单，如果选择了“可停靠工具栏”选项，则为命令提供一组工具栏按钮。
3
A CommandBar in itself provides only the dockable host, and it is up to the user to implement the menu or toolbar that imparts the CommandBar its functionality.