private async void SendQuestion(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(model.QuestionContent))
{
await Application.Current.MainPage.DisplayAlert("Greška", "Morate unijeti tekst pitanja!", "OK");
return;
}
await model.SendQuestion();
var modelC = model.modelCommunication;
if (modelC != null)
{
await Application.Current.MainPage.DisplayAlert("Pitanje poslano", "Uspješno ste postavili pitanje.", "OK");
}
model.Load();
}