public async void RegisterMethod()
        {
            var user = new User
            {
                UserName    = UserNameTxt.ToLower(),
                Password    = PasswordTxt.ToLower(),
                Email       = EmailTxt.ToLower(),
                PhoneNumber = PhoneNumberTxt.ToLower()
            };

            await App.Database.SaveUserAsync(user);

            await Application.Current.MainPage.DisplayAlert("Datos guardados", "Bienvenido" + userName.ToString(), "Acectar");

            await Application.Current.MainPage.Navigation.PushAsync(new LoginPage());

            #endregion
        }