although this may or may not be as "lightweight" as you'd like.
Alternatively, The Beerhouse has an e-commerce "module" containing a shopping cart with PayPal integration, although "The Beerhouse" itself is a complete application, and you would need to refactor out the shopping cart code for your own uses. It is much more "lightweight", however. (Note that the most recent release of The Beerhouse is for ASP.NET MVC whereas older releases are for WebForms).
You can always pick out parts of Shopping Cart .NET to use on your site. You can use InvertedSoftware.ShoppingCart.Intergration for PayPal and InvertedSoftware.ShoppingCart.BusinessLayer for the cart. I can point you in the right direction if you like since i wrote it.
该下载还包含在 asp net MVC 和 Web 表单中用于 paypal 支付网关集成的示例项目。
If you are ok with building your shopping cart using a Control (for Web Form) or component (for ASP.NET MVC), then, you may try the ASP.NET PayPal Control for Website Payments Standard.
我们尚未发布，但如果您有耐心的最后期限，请考虑 DotNetMerchant (http://dotnetmerchant.org)，这是一个库，您可以添加到您的解决方案中以调用多个支付处理器，我们将支持 PayPal（Website Payments Pro、PayFlow Pro 和 IPN）
We haven't released yet, but if you have patient deadlines, consider DotNetMerchant (http://dotnetmerchant.org), it's a library you can add to your solution to call multiple payment processors, and we will support PayPal (Website Payments Pro, PayFlow Pro, and IPN)
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总有：
Shopping Cart.NET，
尽管这可能会也可能不会像您希望的那样“轻量级”。
或者，The Beerhouse 有一个电子商务“模块”，其中包含与 PayPal 集成的购物车，尽管“The Beerhouse " 本身是一个完整的应用程序，您需要重构购物车代码以供自己使用。然而，它更加“轻量级”。 （请注意，The Beerhouse 的最新版本适用于 ASP.NET MVC，而旧版本适用于 WebForms）。
There's always:
Shopping Cart.NET
although this may or may not be as "lightweight" as you'd like.
Alternatively, The Beerhouse has an e-commerce "module" containing a shopping cart with PayPal integration, although "The Beerhouse" itself is a complete application, and you would need to refactor out the shopping cart code for your own uses. It is much more "lightweight", however. (Note that the most recent release of The Beerhouse is for ASP.NET MVC whereas older releases are for WebForms).
您随时可以选择 购物车 .NET 的部分内容在您的网站上使用。您可以将 InvertedSoftware.ShoppingCart.Intergration 用于 PayPal，将 InvertedSoftware.ShoppingCart.BusinessLayer 用于购物车。如果您愿意，我可以为您指出正确的方向，因为我写了它。
加尔
You can always pick out parts of Shopping Cart .NET to use on your site. You can use InvertedSoftware.ShoppingCart.Intergration for PayPal and InvertedSoftware.ShoppingCart.BusinessLayer for the cart. I can point you in the right direction if you like since i wrote it.
Gal
查看 nopCommerce：
http://www.microsoft.com/web/gallery/nopCommerce。 aspx
可能不完全是你想要的，但它非常好，开源，你至少可以看看他们是如何做事的。
希望这有帮助。
Check out nopCommerce:
http://www.microsoft.com/web/gallery/nopCommerce.aspx
Might not be exactly what you are after, but it's pretty good, open source and you can at least have a look at how they have done things.
Hope this helps.
如果您可以使用控件（对于 Web 表单）或组件（对于 ASP.NET MVC）构建购物车，那么您可以尝试用于网站支付标准的 ASP.NET PayPal 控件。
这是链接：http:// www.spicelogic.com/Products/ASP-NET-PayPal-Control-for-Website-Payments-Standard-4
该下载还包含在 asp net MVC 和 Web 表单中用于 paypal 支付网关集成的示例项目。
If you are ok with building your shopping cart using a Control (for Web Form) or component (for ASP.NET MVC), then, you may try the ASP.NET PayPal Control for Website Payments Standard.
Here is the link : http://www.spicelogic.com/Products/ASP-NET-PayPal-Control-for-Website-Payments-Standard-4
The download also contains sample projects for paypal payment gateway integration in asp net MVC and web form.
我们尚未发布，但如果您有耐心的最后期限，请考虑 DotNetMerchant (http://dotnetmerchant.org)，这是一个库，您可以添加到您的解决方案中以调用多个支付处理器，我们将支持 PayPal（Website Payments Pro、PayFlow Pro 和 IPN）
We haven't released yet, but if you have patient deadlines, consider DotNetMerchant (http://dotnetmerchant.org), it's a library you can add to your solution to call multiple payment processors, and we will support PayPal (Website Payments Pro, PayFlow Pro, and IPN)