Change to using Flex 4 and the Spark ComboBox and DropDownList. You'll
probably find them much easier to skin.
Unfortunately Flex 4 isn't an option for this project. Any suggestions on how I can skin just the text input field portion of the combobox? I tried using textInputStyleName, but this only styles the text and won't accept a programmatic or graphical skin.
Maybe you need to specify a custom itemRenderer you have skinned as well.
If this post answers your question or helps, please mark it as such.
Greg Lafrance - Flex 2 and 3 ACE certified
Flex / AIR Development, Training, and Support Services
In case anyone else runs into this - set textInputStyleName, then in that style you can point to a custom borderSkin. This will only apply when editable="true" in the combobox definition. For example:
edit: trying to mark this as the answer but it doesn't appear possible to answer your own question