private void RefreshRequest() { if (_requestService == null) { _requestService = new RequestService(AppSettings.DbConnection); } FondList.Clear(); var fonds = _requestService.GetServiceCompanyFondList( FilterStreetList.Where(w => w.Selected).Select(x => x.Id).ToArray(), _selectedHouse?.Id, SelectedFlat?.Id); foreach (var address in fonds) { FondList.Add(address); } }