public async Task refreshApartment()
{
//public static ApartmentObject findApartment(List<ApartmentObject> apt, int apartmentID) //finds the apartment specified
List <ApartmentObject> l = await(ServerHandeler.getApartments());
currentApartment = PrevApartmentPage.findApartment(l, CurrentUser.ApartmentID);
}
async void OnSubmit(object sender, EventArgs e) //when submit button is pressed
{
int apartmentID = int.Parse(apartment.Text);
List <ApartmentObject> aptLs = await(ServerHandeler.getApartments()); //gets the apartment with the associated userid
ApartmentObject aptObj = findApartment(aptLs, apartmentID);
if (aptObj != null) //if apartmentid is not null
{
await ServerHandeler.addUserToApartment(_gd.CurrentUser.UserID, apartmentID);
_gd.CurrentApartment = aptObj;
Application.Current.MainPage = new NavigationPage(new groupProject01.HomePage(_gd)); //direct to home page
}
else //if apartmentid is null
{
await DisplayAlert("Invalid Apartment ID", "The apartment ID you input is not valid. Please try again.", "OK"); //shows error message
}
}