I wanted to know which control I would use to create a menu like the one present on the Telerik ASP.NET AJAX Demos. I need menu that allows for hierarchy that is visually relatively simple (e.g. text and arrows). If the current page is in the menu items as a sub-item of a section, the menu also needs to expand the applicable parent section and select the current page from the menu.
For example: When visiting the following URL, http://demos.telerik.com/aspnet-ajax/tabstrip/examples/functionality/vertical/defaultcs.aspx, the Functionality section within TabStrip is expanded and the Vertical item is selected.