private void txtFecha_Click(object sender, EventArgs e)
{
DatePickerFragment frag = DatePickerFragment.NewInstance(delegate (DateTime time)
{
txtFechaNac.Text = time.ToLongDateString();
});
frag.Show(FragmentManager, DatePickerFragment.TAG);
}
public static DatePickerFragment NewInstance(Action<DateTime> onDateSelected)
{
DatePickerFragment frag = new DatePickerFragment();
frag._dateSelectedHandler = onDateSelected;
return frag;
}