private void Logar()
        {
            TodoistService todoistService = new TodoistService();

            //Take off the focus from any.
            Focus();

            ApplicationBar.IsVisible = false;
            OverlayPopup.IsOpen = true;
            ShowOverlay.Begin();

            progressIndicator.IsVisible = true;
            progressIndicator.IsIndeterminate = true;
            progressIndicator.Text = "Connecting to Todoist service";

            signUpLoginBtn.IsEnabled = false;

            SystemTray.SetProgressIndicator(this, progressIndicator);

            loginButton.IsEnabled = false;

            todoistService.Login(EmailTxtBox.Text, PasswordBox.Password,
            (data) =>
            {
                NavigationService.Navigate(Utils.MainTodoistPage());
            },
            (error) =>
            {
                loginButton.IsEnabled = true;
                MessageBox.Show(error, "Metroist", MessageBoxButton.OK);
            },
            () =>
            {
                ShowOverlay.Stop();
                OverlayPopup.IsOpen = false;
                progressIndicator.IsIndeterminate = false;
                progressIndicator.IsVisible = false;
                ApplicationBar.IsVisible = true;
                signUpLoginBtn.IsEnabled = true;
            });

            //Empty the passwordbox, just for visual security.
            PasswordBox.Password = string.Empty;

            if (RememberCheckBox.IsChecked == true)
            {
                app.localLoginInfo.isRecorded = true;
                app.localLoginInfo.email = EmailTxtBox.Text;
                app.localLoginInfo.password = PasswordBox.Password;
            }
        }