In addition to the above suggestions, I offer the following. If you don't mind the items of the combo box items look a bit different, and also you know the maximum width of the numbers, you can pad the items with leading zeros. This way, with the "sort" property set to true, the items will sort correctly. For example, if you know the maximum width will be two, then format the items like this: 02, 09, 11, 10, etc. Hope this helps.