Accesses the state of the filter in a filtered list-panel.
returns the state of the filter in
. The return value
is the same type as the state that is used in filtering-layout.
sets the filter in
, filters the unfiltered items and displays those that match the
has the same semantics as the
. It can be a result of a call to list-panel-filter-state or to
(on a filtering-layout), or a string (meaning plain match, case-insensitive), or
(meaning match everything).
On an unfiltered list-panel