Пример #1
0
        public CargoCodePage()
        {
            InitializeComponent();

            String icon = "IconCheck.png";

            BindingContext = this;
            _cargoService  = new CargoService(App.Database.sqlite);

            CargoNamesList.ItemsSource = CargoList;


            ToolbarItems.Add(new ToolbarItem
            {
                Icon    = icon,
                Command = new Command(() =>
                {
                    Device.BeginInvokeOnMainThread(async() =>
                    {
                        await Navigation.PopModalAsync();
                    });
                }),
            });

            CargoNamesList.ItemSelected += (object sender, SelectedItemChangedEventArgs e) =>
            {
                App.Request.Cargo = (Cargo)e.SelectedItem;
                Device.BeginInvokeOnMainThread(async() =>
                {
                    await Navigation.PopModalAsync();
                });
            };

            Search.TextChanged += async(sender, e) =>
            {
                if (e.NewTextValue.Length != 0)
                {
                    Loader.IsVisible = true;

                    var databaseCargo = await _cargoService.FindByCode(e.NewTextValue);

                    if (databaseCargo.Count == 0)
                    {
                        if (!DownloadCheker.IsCargoDownloadedByCode(e.NewTextValue))
                        {
                            DataRetrievalHelper dataHelper = new DataRetrievalHelper();
                            await dataHelper.GetAndSaveCargoByCode(e.NewTextValue[0]);

                            databaseCargo = await _cargoService.FindByCode(e.NewTextValue);
                        }
                    }

                    CargoList.Clear();

                    foreach (var cargo in databaseCargo)
                    {
                        CargoList.Add(cargo);
                    }

                    Loader.IsVisible         = false;
                    CargoNamesList.IsVisible = CargoList.Count != 0;
                }
                else
                {
                    CargoNamesList.IsVisible = false;
                }
            };
        }
Пример #2
0
 public DataRetrievalHelper()
 {
     _stationService = new StationService(App.Database.sqlite);
     _cargoService   = new CargoService(App.Database.sqlite);
     _observers      = new List <IObserver <Message> >();
 }