CollapsiblePanelExtender: Can I initiate collapse/expand from client-side javascript? (AJAX Control Toolkit)
问题 The CollapsiblePanelExtender seems primarily designed to collapse/expand things in response to user mouse events. Is there also a good way to get the extender to collapse/expand things in response to client-side javascript? In my particular case, I have a number of CollapsiblePanelExtenders (and their corresponding Panels) on a page, and I'm wondering if I could implement an "expand all panels" button by doing something like this strictly on the client side: for each CollapsiblePanelExtender