Is it possible to expand dropdown when text input gets the focus? I downloaded the project with solution suggested by Nencho, but first of all it expands dropdown list on initial load of the page and also needs to have client filtering enabled, which I'm trying to avoid.
Alternatively drop-down button to open the list would be nice, similar to the combobox, would work too. I think it would be useful in many cases when user needs to select from a list of items, but doesn't know initially what they are, so currently he has to guess.
I know that the described functionality is provided by combobox, but it doesn't support selection of multiple items and displaying them as tokens, which is done very nicely by autocompletebox.