Return the number of items in the collection by calling the items-count-function
. If representation is non- nil
, it is used in place of the items-representation
in the choice.
The following example uses count-collection-items
to return the number of items in a list panel.
(setq list (make-instance 'capi:list-panel
:items '(1 2 3 4 5)))
(capi:count-collection-items list)
The following example shows how to count the number of items in a specified list.
(capi:count-collection-items list '(1 2))