We are currently modifying a RadPanelBar with our own CSS to customize it's look and feel. We are trying to duplicate the functionality of the side navigation menu found on this site: http://www.greenbuildexpo.org/leed-workshops
If you click around on the side menu of that site, you'll see what I mean. There are multiple parent menu items, some of which have child menu items. All of these sub menu's are collapsed by default. Only when you click on a parent menu item that also has child menu items, does it expand to show them.
Our menu on our Telerik site is currently showing all child menus as expanded. In your documentation, found here: http://www.telerik.com/help/aspnet-ajax/panel_appearancecontrollingappearance.html
we see that the "Expanded" property of a RadPanelItem property we need to modify to control this functionality. The question we have, is, how do we do that?
Do we need to make a custom control where we modify that property? Do we need to edit our CSS in some way to incorporate this? Do we need to edit the control's properties within our template to modify this?