private async void SendExecute() { var title = _title.Trim(); if (_item != null && !string.Equals(title, _item.Title)) { var response = await ProtoService.EditChatTitleAsync(_item.Id, title); if (response.IsSucceeded) { _item.Title = title; _item.RaisePropertyChanged(() => _item.Title); } else { // TODO: return; } } NavigationService.GoBack(); }