public void OnGet(string returnUrl = null)
{
ReturnUrl = returnUrl;
// Setting this to null here, so that it doesn't show the same error message from OnPostAsync
RegistrationStatusMessage = null;
if (Gender == null || Day == null || Month == null || Year == null)
{
Gender = _listItem.GetGenderAsync();
}
Day = _listItem.GetDayAsync(); Month = _listItem.GetMonthAsync(); Year = _listItem.GetYearAsync();
}