VMenuBar
withItem(com.vaadin.flow.component.Component component)
withItem(com.vaadin.flow.component.Component component, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<com.vaadin.flow.component.contextmenu.MenuItem>> clickListener)
withItem(String text)
withItem(String text, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<com.vaadin.flow.component.contextmenu.MenuItem>> clickListener)
withOpenOnHover(boolean openOnHover)