private async void SaveUnregister(TrainingSession obj)
{
try
{
bool answer = await Application.Current.MainPage.DisplayAlert("Confirmation d'annulation", "Êtes-vous sûr de vouloir vous désinscrire à la session du : " + obj.Date, "Oui", "Non");
if (answer)
{
int userId = int.Parse(Application.Current.Properties["UserId"].ToString());
//Register the user to the training Session in parameter
int delete = TrainingSessionService.SaveUnregister(userId, obj.Id);
if (delete != 0)
{
obj.AvailableSeat += 1;
TrainingSessionService.Update(obj);
ObservableCollection <TrainingSession> trainingSessions = new ObservableCollection <TrainingSession>(TrainingSessionService.GetAllByUserId(userId));
if (trainingSessions != null)
{
Items.Remove(obj);
}
//Event publish to refresh the user's trainings list
Event.GetEvent <SentEventUnregister>().Publish(obj.Id);
Event.GetEvent <RefreshAvailableTrainingSessionsListEvent>().Publish();
await Application.Current.MainPage.DisplayAlert("Confirmation", "Vous êtes désinscrit à la session du : " + obj.Date, "Ok");
}
else
{
//Message d'erreur;
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}