NET AJAX Control Toolkit where the CollapsiblePanel is used extensively
in nearly all pages. Specifically, in Solution Explorer, expand the CollapsiblePanel
folder, and take a look at the CollapsiblePanel,aspx page where the focus is this extender.
CHAPTER 7 ?– USING THE ASP.NET AJAX CONTROL TOOLKIT (PART 1) 154
For the purposes of this demo, let??™s focus only on the first panel on top of the page as
shown in Figure 7-14.
Figure 7-14. Example of CollapsiblePanel (in collapsed mode)
This portion of the page consists of two panels with a CollapsiblePanelExtender, and
it displays some basic information about ASP.NET AJAX. There is a little image on the
right side of the panel that collapses or expands the panel when clicked. Here??™s the .aspx
markup for this portion of the page: