public async void AddGuest(Guest PostGuest)
{
await CRUD.PostGuestHttp(PostGuest);
LoadGuestJson();
}
public async void EditGuest(Guest EditGuest)
{
await CRUD.ChangeGuestHTTP(EditGuest);
LoadGuestJson();
}
public async void DeleteGuest(Guest GuestDelete)
{
await CRUD.DeleteGuestHTTP(GuestDelete);
LoadGuestJson();
}