问Windows 8商店的应用程序购买

EN

private async void RenderStoreItems()
    {
        picItems.Clear();

        try
        {

            ListingInformation li = await CurrentApp.LoadListingInformationAsync();

            foreach (string key in li.ProductListings.Keys)
            {
                ProductListing pListing = li.ProductListings[key];
                System.Diagnostics.Debug.WriteLine(key);

                string status = CurrentApp.LicenseInformation.ProductLicenses[key].IsActive ? "Purchased" : pListing.FormattedPrice;

                string imageLink = string.Empty;

                picItems.Add(
                    new ProductItem
                    {
                        imgLink = key.Equals("AdvertBlocker") ? "/Assets/Purchases/NoAds.png" : "/Assets/Purchases/NoAds.png",
                        Name = pListing.Name,
                        Status = status,
                        key = key,

                    }
                );
            }

            pics.ItemsSource = picItems;
        }
        catch (Exception e)
        {
            System.Diagnostics.Debug.WriteLine(e.ToString());
        }
    }