// Serialize the order details
private async Task SaveOrder(OrderDetails details)
{
StorageFile userdetailsfile = await ApplicationData.Current.LocalFolder.CreateFileAsync("OrderDetails", CreationCollisionOption.ReplaceExisting);
IRandomAccessStream raStream = await userdetailsfile.OpenAsync(FileAccessMode.ReadWrite);
using (IOutputStream outStream = raStream.GetOutputStreamAt(0))
{
// Serialize the Session State.
DataContractSerializer serializer = new DataContractSerializer(typeof(OrderDetails));
serializer.WriteObject(outStream.AsStreamForWrite(), details);
await outStream.FlushAsync();
}
}
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
var paymentResult = e.Parameter as ValueSet;
OrderPlacedMessage.Text = string.Format("Congratulations! You just purchased {0}", paymentResult["ProductName"] as string);
//Save this order
OrderDetails order = new OrderDetails();
order.ItemName = paymentResult["ProductName"] as string;
order.OrderPlacedTime = DateTime.UtcNow;
order.OrderID = GenerateOrderId();
order.TrackingNumber = GenerateTrackingNumber();
await this.SaveOrder(order);
}