protected override void InitializeComponent() { base.InitializeComponent(); mDataStore = new SampleDataStore(); mDataStore.AddObserver(this as IDataStoreObserver); }
async Task ExecuteLoadItemsCommand() { if (IsBusy) { return; } IsBusy = true; try { Items.Clear(); var items = await SampleDataStore.GetAsync(); foreach (var item in items) { Items.Add(item); } } catch (Exception ex) { Debug.WriteLine(ex); } finally { IsBusy = false; } }
public ItemsViewModel() { Title = "Browse"; Items = new ObservableCollection <SampleModel>(); LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand()); MessagingCenter.Subscribe <NewItemPage, SampleModel>(this, "AddItem", async(obj, item) => { var newItem = item as SampleModel; Items.Add(newItem); await SampleDataStore.InsertItemAsync(newItem); }); }
public MainPageViewModel() { _orders = Models.SampleDataStore.GetSampleOrders(); _salesConversions = SampleDataStore.GetSampleSalesConversions(_orders); SelectedProduct = SampleDataStore.PRODUCT_A; }