How can I get the value of the Entry?

[QuintinTao]

I want to get the user_name and passwords' values when I click the btn submit.

                 append = &gtk::Entry {
                        //set_buffer: &model.entry,
                        set_tooltip_text: Some("username"),
                        connect_activate(sender) => move |_| {
                            //send!(sender, AppMsg::get_user_name);
                        },
                    },
                 },

I want to get the Entry value when I click the sumit btn.

             append = &gtk::Box {
                    set_orientation: gtk::Orientation::Horizontal,
                    set_spacing: 10,
                    append = &gtk::Button {
                        set_label: "login",
                        connect_clicked(sender) => move |_| {
                           // **how can I get the Entry value here?**
                            send!(sender, AppMsg::Login((model.user_name, model.password)));
                        },
                    },
                    append = &gtk::Button {
                        set_label: "reg",
                        connect_clicked(sender) => move |_| {
                            send!(sender, AppMsg::Reg);
                        },
                    },
                },

[AaronErhardt]

There are two options:

1. You store the value of the entry in your model. The easiest way to do this is to create an EntryBuffer and store it inside the model. Then you use set_buffer to set the buffer of the entry in the view! macro. Whenever you want to get the value of the entry you can the just call self.buffer_name.text() in the update method.

2. You name your entries and move them into the button closure:

connect_clicked(sender, entry1_name, entry2_name) => move |_| {
   let user_name = entry1_name.buffer().text();
   let password = entry2_name.buffer().text();
   send!(sender, AppMsg::Login((user_name, password)));
},

I hope this helps you :)

[QuintinTao]

it does help me！thanks
By the way how can I learn relm？ I need some doc to learn API .

There are two options:

1. You store the value of the entry in your model. The easiest way to do this is to create an EntryBuffer and store it inside the model. Then you use set_buffer to set the buffer of the entry in the view! macro. Whenever you want to get the value of the entry you can the just call self.buffer_name.text() in the update method.
2. You name your entries and move them into the button closure:

connect_clicked(sender, entry1_name, entry2_name) => move |_| {
   let user_name = entry1_name.buffer().text();
   let password = entry2_name.buffer().text();
   send!(sender, AppMsg::Login((user_name, password)));
},

I hope this helps you :)

It does help me. Thanks .by the way where can I learn relm.I mean the api.

[AaronErhardt]

You can learn Relm4 with the book, the examples or the documentation. You can find all those links in the Readme.
Also, this article might help you: https://aaronerhardt.github.io/blog/posts/gui_speedrun/