BLToolkit
Summary from product page:
"Business Logic Toolkit is a set of components to simplify .NET application development. BLToolkit is provided as source code that you can use "as is" or customize for your applications. It is written in C# and compatible with .NET Framework 2.0, 3.0, and 3.5."
Tested version: 3.1
Test code:
- LINQ implementation (comment against each test describes if it passes or fails)
- Performance
License:
- Freeware (MIT License)
- Open source
Links:
