title: ASP.NET Dropdownlist selectedindexchanged event not firing on up / down arrow
body: <p>I have a server dropdownlist in an <a href="http://en.wikipedia.org/wiki/Ajax_%28programming%29" rel="noreferrer">Ajax</a> updatepanel.  When I use the mouse to click on an item it fires the postback but when I click the up/down arrow to change entries, this is not firing. What could be reason?</p>