async void NajaviDolazak(object sender, EventArgs args)
{
var dog = (Dogadjaj)((Button)sender).BindingContext;
viewmodel.Najavi(dog);
if (!dog.NajavaDolaska.Select(l => l.IdKorisnik).Contains(App.Korisnik.Id))
{
dog.NajavaDolaska.Add(new NajavaDolaska {
Id = Guid.NewGuid(), IdKorisnik = App.Korisnik.Id, IdDogadjaj = dog.Id
});
((Button)sender).BackgroundColor = Color.FromHex("1C6EBC");
}
else
{
var l = dog.NajavaDolaska.Where(l => l.IdKorisnik == App.Korisnik.Id && l.IdDogadjaj == dog.Id).SingleOrDefault();
dog.NajavaDolaska.Remove(l);
((Button)sender).BackgroundColor = Color.Gray;
}
int g = 0;
}
