private async void Button_Save_Click(object sender, RoutedEventArgs e) { if (TextBox_account.Text == "" || PasswordBox_password.Password == "" || TextBox_serverIP.Text == "") { NotifyPopup notifyPopup = new NotifyPopup("?"); notifyPopup.Show(); return; } ConfigService.ApiUri = TextBox_serverIP.Text; ConfigService.PhoneOrEmail = TextBox_account.Text; ConfigService.Password = OtherHelper.Encrypt(PasswordBox_password.Password); ConfigService.SaveConfig(); await CoreApplication.RequestRestartAsync(String.Empty); }