pub fn on_new(child: impl IntoUiNode, handler: Handler<CommandArgs>) -> UiNodeExpand description
P On new command.
Receives NEW_CMD command events scoped on the widget. The command parameter can be
the new item type identifier.
§Command
This property will subscribe to the
NEW_CMD
command scoped on the widget. If set on the Window! root widget it will also subscribe to
the command scoped on the window.
The command handle is enabled by default and can be disabled using the contextual property
can_new
.
§Route
This event property uses the normal route, that is, the handler is called after the children widget handlers and after the
$pn_pre_ident
handlers.