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Design by the principle of least surprise. The user pressed the tab key 99.999% of the time this was not an error. So what do they expect? Consistency heuristic would guide that users expect same behaviour as their most familiar platform - if they actually know the behaviour in that platform. For something this subtle that would be the minority. User ...


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First off, for accessibility reasons it is really important that the Tab key instantly goes to the next item in a form (based on a Tab order that makes sense -- Left to Right, Top to Bottom) I know this isn't your question but I wanted to make sure people didn't suggest preventing the TAB key from registering or any such non-sense. If a combo box has focus ...


0

You've listed two possible behaviors: mimicking an enter key or mimicking an escape key. Have you considered doing nothing at all? Just discard the keystroke as inappropriate for the particular control (combobox) in its current state (option-list-showing). As long as your combobox doesn't automatically show its option list when it gets the focus, then ...


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There are a few things to consider. But first off, just as a hint, having a screen shot of the situation would very helpful. To consider: - What is the user going to be putting in the combo box? - Is what the user typing in the combo box dependent on what's in the table? - Is there a way that you can place the combo box in such a location such that when ...



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