RadTokenInput features keyboard support for quick item selection with the keyboard. Below are the keys and
key combinations needed to navigate the control and select items.
Focus the control: TAB key when the control is next in the tab order.
Open the popup: down arrow.
Close the popup: Esc key.
Highlight previous item: up arrow.
Highlight next item: down arrow.
Highlight first item in the popup: Home key.
Highlight last item in the popup: End key.
Select highlighted item: Enter key.
Deselect the last selected item: Backspace key.