Programming concepts (C#)

This section explains programming concepts in the C# language.

In this section

Title	Description
Covariance and Contravariance (C#)	Shows how to enable implicit conversion of generic type parameters in interfaces and delegates.
Iterators (C#)	Describes iterators, which are used to step through collections and return elements one at a time.

Performance Tips

Discusses several basic rules that might help you increase the performance of your application.