I have a web form with a dropdown list <asp:dropdownlist>, but for the sake of formatting I want the actual control (before you open the dropdown list) to be relatively narrow. When the user opens the contents of the dropdown, I want the actual list to appear wider than the control.
Something like this:

(source: ibm.com)
How can you achieve this functionality with ASP.NET webforms?
Basically, either the browser will expand the list width when dropped or it won’t. And you guessed it IE won’t.
Your only bet with IE is to set the
titleattribute of theoptionelement to the value text. Then you will get a tooltip.