protected override async void OnSaveExecute()
{
try
{
await _programmingLanguageRepository.SaveAsync();
HasChanges = _programmingLanguageRepository.HasChanges();
// ReiseCollectionSavedEvent();
}
catch (Exception e)
{
while (e.InnerException != null)
{
e = e.InnerException;
}
await MassegeDialogService.ShowInfoDialogAsync("Error while Saving the entities, " +
" the data will be reloaded: " + e.Message);
await LoadAsync(Id);
}
}
private async void OnRemoveExecute()
{
var isReference =
await _programmingLanguageRepository.IsReferenceByFriendAsync(SelectedProgrammingLanguage.Id);
if (isReference)
{
await MassegeDialogService.ShowInfoDialogAsync($"The Language {SelectedProgrammingLanguage.Name} can't be removed," +
$"as it is referenced by at least one of friend");
return;
}
SelectedProgrammingLanguage.PropertyChanged -= Wrapper_PropertyChanged;
_programmingLanguageRepository.Remove(SelectedProgrammingLanguage.Model);
ProgrammingLanguages.Remove(SelectedProgrammingLanguage);
SelectedProgrammingLanguage = null;
HasChanges = _programmingLanguageRepository.HasChanges();
((DelegateCommand)SaveCommand).RaiseCanExecuteChanged();
}
