PayPal Express C# Order Summary
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How do I include line items in the order summary of PayPal Express Checkout?  

I'm using ASP.Net and C# and I've tried adding this to the paypalfunctions.cs file that the PayPal Integration Wizard (https://www.paypal-labs.com/integrationwizard/) generates, but the line item doesn't show up in the "Your Order Summary" page: 
encoder["L_PAYMENTREQUEST_0_NAME0"] = "My Line Item";
encoder["L_PAYMENTREQUEST_0_QTY0"] = "1";

