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;
}
