VB.NET 2005 Control?

What is the name of the control that allows you to collapse and expand a section of output. Just like the ones in Facebook where you click on the title and then the contents appear (or disappear) below?VB.NET 2005 Control?
it's called ';collapsible panel'; and is party of AJAX package that is available from Microsoft for FREE!!!





here's the link to the sample demo:


http://asp.net/AJAX/AjaxControlToolkit/S鈥?/a>





here's the link to the video tutorial:


http://www.asp.net/learn/ajax-videos/vid鈥?/a>





and here's the link to install AJAX, so you can start using this feature on your website.:


http://www.codeplex.com/AtlasControlTool鈥?/a>








i have it on my website and really love it!! good luck!!VB.NET 2005 Control?
CollapsiblePanel is one of the controls, I think the one you are looking for is the AccordionPane, which provides a number of sections, only 1 of which can be active at any point in time. It is essentially a collection of collapsible panels. Requires Asp.Net Ajax extensions and the AjaxControlToolkit. The toolkit samples should show you everything you need to get up and running with these cool UI controls.