I'm working on several ASP.NET ecommerce projects where we're using Aspdotnetstorefront solution. It is not so bad. It has a lot of useful features, it is extensible, it is stable, but... the source code is like nightmare. If you need customize something - it becomes a problem for you, because you need to change it in several places and always keep it in mind.
Can anyone suggest some better solution?
roll your own? there are several start up projects available from microsoft or i have heard that dotshoppingcart is supposed to be good but i have not used it myself. I would advise diy as then you will know what is happening in the code
http://www.asp.net/community/projects look for ecommerce
Your choice will probably depend on whether you want c# or vb, webforms or MVC etc.
If you want webforms like aspdotnetstorefront then try
It's free and open source. Nopcommerce is popular if you want MVC
来源：https://stackoverflow.com/questions/4783251/asp-net-ecommerce-solutions