{ $description "A key which may be set in the hashtable passed to " { $link define-operation } ". If set to a true value, this operation becomes the default operation performed when " { $snippet "RET" } " is pressed in a " { $link list } " gadget where the current selection is a presentation matching the operation's predicate." } ;
"A list control is backed by a " { $link model } " holding a sequence of objects, and displays as a list of " { $link presentation } " instances of these objects."
{ $description "Creates a new " { $link list } "."
$nl
"The model value must be a sequence. The list displays presentations of elements with labels obtained by applying the " { $snippet "presenter" } " quotation to each object. The " { $snippet "hook" } " quotation is called when a presentation is selected." } ;
HELP:list-value
{ $values { "list" list } { "object"object } }
{ $description "Outputs the currently selected list value." } ;
"The " { $vocab-link "ui.gadgets.lists" } " vocabulary implements lists, which displays a list of presentations (see " { $link "ui.gadgets.presentations" } ")."
