public class AutoFormViewPageViewModel : ViewModelBase
{
    [Reactive] public string Email { get; set; }
    [Reactive] public string FullName { get; set; }
    [Reactive] public Gender Gender { get; set; }
    [Reactive] public DateTime? BirthDate { get; set; }
    [Reactive] public TimeSpan? MeetingTime { get; set; }
    [Reactive] public int? NumberOfSeats { get; set; }
    [Reactive] public bool IsTermsAndConditionsAccepted { get; set; }
}

builder.Services.Configure<AutoFormViewOptions>(options =>
{
    options.ValidationFactory = DataAnnotationValidation.CreateValidations;
});

builder.Services.Configure<AutoFormViewOptions>(options =>
{
    options.EditorMapping[typeof(string)] = (property, source) =>
    {
        var editor = new Entry();
        editor.SetBinding(Entry.TextProperty, new Binding(property.Name, source: source));
        return editor;
    };

    options.EditorMapping[typeof(int)] = (property, source) =>
    {
        var editor = new Stepper();
        editor.SetBinding(Stepper.Value, new Binding(property.Name, source: source));
        return editor;
    };
});