public ApplicationViewModel()
        {
            service    = new ServiceModule("mvvmApp.Dal.Abstract.Entities.ApplicationContext");
            serviceAdo = new ServiceModuleAdo();

            List <Item> computersIEnum = serviceAdo.Items.GetAllItems().ToList();//service.Items.GetAllItems().ToList();//client.GetAllItems().ToList(); //


            try
            {
                clientDto = new ItemDTOServiceClient();

                List <ItemDTO> itemDTOs = new List <ItemDTO>(clientDto.GetAll());

                var mapperConfig = new MapperConfiguration(config => config.CreateMap <ItemDTO, ItemModel>());
                var map          = mapperConfig.CreateMapper();

                Computers = new ObservableCollection <ItemModel>
                                (map.Map <List <ItemDTO>, ObservableCollection <ItemModel> >(itemDTOs));
            }
            catch (Exception ex)
            {
            }

            try
            {
                client = new ItemServiceClient();
                if (client != null)
                {
                    string ItemData = "";
                    foreach (var item in computersIEnum)
                    {
                        ItemData += item.ToString() + "\n";
                    }
                    client.ItemsFromDatabase(ItemData);
                }
            }
            catch (Exception ex)
            {
            }



            //var mapperConf  = new MapperConfiguration(conf => conf.CreateMap<Item, ItemModel>());
            //var mapper = mapperConf.CreateMapper();

            //Computers = new ObservableCollection<ItemModel>
            //    (mapper.Map<List<Item>, ObservableCollection<ItemModel>>(computersIEnum));



            //serviceAdo = new ServiceModuleAdo();

            //var computersIEnum = serviceAdo.Items.GetAllItems().ToList();

            //var orders = serviceAdo.Orders.GetAllItems();

            //Computers = serviceAdo.Computers;
        }