Possible Duplicate:
How to tell the user that an input box is autocomplete-enabled?
Has anyone come across any kind of visual indicator that suggests a text field will autocomplete? Anything that is becoming standard/common?
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Sign up to join this communityPossible Duplicate:
How to tell the user that an input box is autocomplete-enabled?
Has anyone come across any kind of visual indicator that suggests a text field will autocomplete? Anything that is becoming standard/common?
A down-arrow, similar to a combo box, would indicate that some kind of list will drop down on focus, preparing the user for suggestions. It could either show an empty list, perhaps with a message like "Start typing for suggestions", or show some common suggestions as lazyboy proposed. The appropriate default would of course be different for different cases. I do think it should drop down with something if you were to show a down-arrow, or the lack of response upon clicking will simply confuse the user more than a plain text box would--counterproductive.
"If you open a form and click inside a text field, how do you know it has autocomplete without beginning to type?"
Whenever the user focuses on the textfield, immediately provide an autocomplete feedback (for empty string/top scored results).
Say a user is autocompleting a country field, then focusing on the textfield would immediately show top 5 (or how many you like) countries based on some criteria/score. Most chances are user will not have to type anything if they are sorted correctly. If the user decideds to type "A", filter and show the suggestions for "A".
Potential idea: Use a fancier placeholder text that looks like part of a word is typed and then a lighter, autocomplete style text is after it - with a cursor between them.
Here's a super simple Photoshop mockup of the idea (imagine it without the underline).