how can i make the value of a button "global"

[Rfellipe]

Hello everyone, I'm new to rust and slint and I was asked to help on a project and currently i'm trying to get the ssid of a network to kind of be a global one, so as you can see below this is the slint part in rust that gets the ssid and password:

ui.on_wifi_try(
         move |local_wi_name, local_wi_pass| {
              let _ui = set_wifi_data.upgrade().unwrap();
              connect_wifi(&local_wi_name, &local_wi_pass);
              _ui.set_wifi_status_0(wifi_data.status.into());
         }
);

and i tried doing this:

let mut ssid: &String = &String::new();

ui.on_wifi_try(
         move |local_wi_name, local_wi_pass| {
              let _ui = set_wifi_data.upgrade().unwrap();
              connect_wifi(&local_wi_name, &local_wi_pass);

              ssid = &local_wi_name.to_string();

              _ui.set_wifi_status_0(wifi_data.status.into());
         }
);

println!("{}", ssid);

but rust won't let me, so I was wondering if I could get this value in any other way

[ogoffart]

Maybe wrap your global data in a Rc<RefCell>

example:

let ssid = Rc::new(RefCell::new(String::new());

ui.on_wifi_try({
         let ssid = ssid.clone();
         move |local_wi_name, local_wi_pass| {
              let _ui = set_wifi_data.upgrade().unwrap();
              connect_wifi(&local_wi_name, &local_wi_pass);

              *ssid.borrow_mut() = local_wi_name.to_string();

              _ui.set_wifi_status_0(wifi_data.status.into());
         }
});

println!("{}", ssid.borrow().as_str());