I've noticed a slight problem with the combos. If you open the dropdown menu and choose something so that it appears in the text field, then open the dropdown again but select outside of the dropdown, the previously selected text stays in the text field but the actual selected item is -1.
This can be confusing if you're validating the selection because to the user it looks as if something has been selected but the program thinks it's empty.
This can be confusing if you're validating the selection because to the user it looks as if something has been selected but the program thinks it's empty.