I have a ComboBox with “immediate” turned on so it matches values as I type. If I have “Apple Computer” as an item, and I type “Apple”, I can see that the ComboBox has filtered the list of choices that start with “Apple”. If I now click the down arrow to highlight “Apple Computer” and hit TAB, no value gets selected (and focus moves on to the next field). In contrast, if I do the same thing and hit ENTER, “Apple Computer”
does
get selected.
So the bug, in my opinion, is that with a value apparently selected, users expect TAB to select the value currently highlighted (and, of course, tab on to the next field).
Is this a known issue and is there any known workarounds?