In this article I am going to discuss about an Ajax control named 'AlwaysVisibleControlExtender' and how to use it in asp.net 2.0. AlwaysVisibleControlExtender is used to define area of content on user interface to state visible no matter how the user scroll around the rest of content of the page. The AlwaysVisibleControl is a simple extender allowing you to pin controls to the page so that they appear to float over the background body content when it is scrolled or resized. It targets any ASP.NET control and always keeps the position a specified distance from the desired horizontal and vertical sides.
