void DatePicker (bool light)
        {
            var p = new BetterPickers.DatePickers.DatePickerBuilder ()
                .SetFragmentManager (FragmentManager)
//                .SetYear (DateTime.Now.Year)
//                .SetMonthOfYear (DateTime.Now.Month)
//                .SetDayOfMonth (DateTime.Now.Day)
                .SetStyleResId (light ? Resource.Style.BetterPickersDialogFragment_Light : Resource.Style.BetterPickersDialogFragment);
            p.AddDatePickerDialogHandler ((reference, year, month, day) => {
                ShowToast ("DatePicker Set: Ref={0}, Year={1}, Month={2}, Day={3}", reference, year, month, day);
            });
            p.Show ();
        }
        void DatePicker(bool light)
        {
            var p = new BetterPickers.DatePickers.DatePickerBuilder()
                    .SetFragmentManager(FragmentManager)
//                .SetYear (DateTime.Now.Year)
//                .SetMonthOfYear (DateTime.Now.Month)
//                .SetDayOfMonth (DateTime.Now.Day)
                    .SetStyleResId(light ? Resource.Style.BetterPickersDialogFragment_Light : Resource.Style.BetterPickersDialogFragment);

            p.AddDatePickerDialogHandler((reference, year, month, day) => {
                ShowToast("DatePicker Set: Ref={0}, Year={1}, Month={2}, Day={3}", reference, year, month, day);
            });
            p.Show();
        }