Function on_pre_save_as 

pub fn on_pre_save_as(
    child: impl IntoUiNode,
    handler: Box<dyn FnMut(&CommandArgs) -> HandlerResult + Send>,
) -> UiNode

P On save-as command.

Receives SAVE_AS_CMD command events scoped on the widget. Usually prompts the user for a new save path.

Command

This property will subscribe to the SAVE_AS_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_save_as .

Route

This event property uses the preview route, that is, the handler is called before the children widget handlers and before the $pn_ident handlers.