async void Lajkam(object sender, EventArgs args) { var k = (KomentarObavijesti)((Image)sender).BindingContext; await viewmodel.Lajk(k); if (!k.LajkKomentara.Select(l => l.IdKorisnik).Contains(App.Korisnik.Id)) { ((Image)sender).Source = "like.png"; var v = (SfBadgeView)(((Image)sender).Parent); v.BadgeText = "" + (Int32.Parse(v.BadgeText) - 1); } else { ((Image)sender).Source = "likes.png"; var v = (SfBadgeView)(((Image)sender).Parent); v.BadgeText = "" + (Int32.Parse(v.BadgeText) + 1); } int g = 0; }