Example of how to overload operators in C#

Instead of using a different Assert method for each different type of assertion (e.g.: Assert.AreEqual() for equality comparison, or Assert.IsTrue() for boolean evaluation), the new Constraint-Based Assert Model introduced in NUnit 2.4 utilizes only one Assert method named Assert.That().

Free helper method to convert a SQL query to CSV format for easy output to a file, the console, or via a HttpResponse (for you ASP.NETers out there looking for an easy way to dynamically output a CSV for real-time data download).

Free .NET code that converts the contents of an ArrayList to a delimited string

Free code that determines if 2 lists (any objects that implement the IList interface, such as Array, ArrayList, ListBox, etc.) contain the same objects or value types.