RadAutoCompleteBox exposes the PopupCloseMode
property which can be used to define when the suggestions popup is closed.
Using the PopupCloseMode property
The PopupCloseMode property accepts the following values:
The OnLostFocus close mode implies that the suggestions
popup is closed as soon as RadAutoCompleteBox loses focus.
The OnBackKeyPress close mode implies that the suggestions
popup is closed as soon as the user presses the Back button
on their device.
The following XAML code snippet demonstrates setting the PopupCloseMode property: