Gets or sets a value that specifies whether cookies are used to persist information about the NavBar's state.
true, if information is persisted in cookies; otherwise, false.
Use the SaveStateToCookies property to control whether a cookie is used to maintain information about the NavBar. If the browser or device supports cookies, then cookies are used to persist this information; otherwise, information is lost between different requests for the same page from the client device's browser.
When this property is set to true, the NavBarSettings.SaveStateToCookiesID property can also be used to specify how information should be persisted in cookies.