public IEnumerable <ComboBoxItemInfo> GetComboxItemInfos() { if (_heroInfos == null) { _heroInfos = _restApi.GetHeroList(App.Language) .Select(hi => new ComboBoxItemInfo() { Id = hi.Id.ToString(), Name = hi.Name, Acronym = hi.Acronym, }) .OrderBy(item => item.Name); } return(_heroInfos); }