RadComboBox features keyboard support for quick selection with a keyboard. Here are the keys and
key combinations needed to navigate the control and select a value.
Focus the control: TAB key when the control is next in the tab order.
Select previous item: up arrow.
Select next item: down arrow.
Open the popup: Alt + down arrow.
Close the popup: Alt + up arrow or Esc key.
Select a highlighted item: Enter key.