component for a type-to-filter dropdown?

Is there a component that will give me a type-to-filter text box?  The filter list should only show up when the user is actually typing.  For example, when you go to the Google home page the search box is just the rectangle.  But as you start typing, you get a list of items that appear below the rectangle which match what you're typing.  Then when you leave the text box, the filter list goes away again.  As far as I can see, the closest match to what I want is the "Searchable List Box" component.  However, the problem with this is that the filter list is ALWAYS visible, even when the user is not typing.  Is there a way to adjust the "Searchable List Box" component so that the filter portion of the list box is hidden when the user is not typing?