Prop	Type	Default	Description
`actionsRef`	RefObject<NavigationMenuRootActions>	—	A ref to imperative actions.
`onOpenChangeComplete`	(open: boolean) => void	—	Event handler called after any animations complete when the navigation menu is closed.
`value`	any	`null`	The controlled value of the navigation menu item that should be currently open. When non-nullish, the menu will be open. When nullish, the menu will be closed. To render an uncontrolled navigation menu, use the `defaultValue` prop instead.
`defaultValue`	any	`null`	The uncontrolled value of the item that should be initially selected. To render a controlled navigation menu, use the `value` prop instead.
`onValueChange`	(value: any, eventDetails: NavigationMenuRootChangeEventDetails) => void	—	Callback fired when the value changes.
`delay`	number	`50`	How long to wait before opening the navigation menu. Specified in milliseconds.
`closeDelay`	number	`50`	How long to wait before closing the navigation menu. Specified in milliseconds.
`orientation`	enum	`'horizontal'`	The orientation of the navigation menu.
`style`	enum	—	Style applied to the element, or a function that returns a style object based on the component’s state.
`className`	enum	—	CSS class applied to the element, or a function that returns a class based on the component’s state.
`render`	enum	—	Allows you to replace the component’s HTML element with a different tag, or compose it with another component. Accepts a `ReactElement` or a function that returns the element to render.

Accessibility

Full keyboard navigation: Arrow keys to navigate items, Enter/Space to activate triggers
Escape key closes open dropdowns and returns focus to trigger

Localization