I have a situation where a part of a dropdownlist (in ASP.Net) is off the screen.

How can I limit the number of items in a ASP.Net drop down list or how can I set the Maximum height?

I don't want to limit the number of total items in my list. I want to reduce the height of the combo. Currently, when it is opening, it shows about 20 items. I would like to limit it to about 12 because on some screen (depending on the user screen resolution), a portion of the drop down is off the screen and is not visible.