Question

I want to have jquery-ui autocomplete automatically select the answer if there is only one answer that comes back.

Answer 1

I set up the autocomplete with an "open" callback:

    $('#people_new_user input[type="text"]').each(
    function(index, element) {
        var field = element.name;
        $(element)
            .autocomplete({
          source: "/cf/AutoComplete/People?current="+field,
          open: openUser
        });
    });

And in the open callback I look to see if there is only one result, and select it if it is:

function openUser(event, ui)
{
  // Try to select the first one if it's the only one
  var $children = $(this).data('ui-autocomplete').menu.element.children();
  if ($children.size() == 1)
  {
     $children.first().click();
  }
}