I want to develop a application for CRM in C#

I need some project that I can read it's source code and learn the design structure from it.This project should have a da开发者_JAVA技巧tabase layer, and business rule layer, anyone has suggestions? Thanks in advance !

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What about dotnetnuke you can get the source from their website

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You can look around on CodePlex for good open source C# code.

Asp.NET CRM is one option

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A few open source CRM's come to mind:

• SugarCRM
• OpenCRX
• VTiger