// When the user selects a shipping rate, set that rate on the checkout and proceed to the discount activity.
private void OnShippingRateSelected(ShippingRate shippingRate)
{
ShowLoadingDialog(Resource.String.syncing_data);
SampleApplication.SetShippingRate(shippingRate, delegate
{
DismissLoadingDialog();
StartActivity(new Intent(this, typeof(DiscountActivity)));
}, OnError);
}
