private async void GoEntry(object vm) { { EntranceViewModel entranceViewModel = vm as EntranceViewModel; Globals.CurrentUser = await db.Entry(entranceViewModel.Mail, entranceViewModel.Password); if ((Globals.CurrentUser != null) && (Globals.CurrentUser.Mail.Trim() == entranceViewModel.Mail) && (Globals.CurrentUser.Password.Trim() == entranceViewModel.Password)) { await Navigation.PushAsync(new Tabs()); } else { View.Fail(); } } }