Hi, Çetin!

>Thinking you've already tried client side caching (afraid to ask this) might it be you forgot binding?

That's a very fair question, it's not beyond me to forget such a thing! <s> However, I hadn't forgotten the binding in this case. Indeed, I have to bind the page first before I can even use FindControl to get the DropDownList object. Thanks, though for taking a look at my problem.