public MainForm() { _service = new GreetingService(); Title = "EtoPlayground"; ClientSize = new Size(348, 80); var nameBox = new TextBox { PlaceholderText = "Your name" }; nameBox.Bind(c => c.Text, _service, m => m.Name); var greetingField = new Label { Text = "Waiting" }; greetingField.Bind(c => c.Text, _service, m => m.Greeting); var upperButton = new Button { Text = "Upper" }; upperButton.Click += (sender, e) => _service.ChangeNameUpper(); var notifyButton = new Button { Text = "Notify" }; notifyButton.Click += (sender, e) => _service.Notify(); var layout = new DynamicLayout { Padding = new Padding(10) }; layout.BeginVertical(); layout.BeginHorizontal(); layout.Add(nameBox, true); layout.Add(upperButton); layout.EndHorizontal(); layout.BeginHorizontal(); layout.Add(greetingField, true); layout.Add(notifyButton); layout.EndHorizontal(); layout.EndVertical(); Content = layout; var quitCommand = new Command { MenuText = "Quit", Shortcut = Application.Instance.CommonModifier | Keys.Q }; quitCommand.Executed += (sender, e) => Application.Instance.Quit(); var aboutCommand = new Command { MenuText = "About..." }; aboutCommand.Executed += (sender, e) => MessageBox.Show(this, "About my app..."); // create menu Menu = new MenuBar { Items = { // File submenu new ButtonMenuItem { Text = "&File", Items ={ } }, }, ApplicationItems = { // application (OS X) or file menu (others) new ButtonMenuItem { Text = "&Preferences..." }, }, QuitItem = quitCommand, AboutItem = aboutCommand }; }