Covariance and contravariance are precise terms that describe which conversions are safe on parameters and return types. Learn practical definitions for those terms, what new constructs will be ...

Generics allow you to write more-robust code with a greater degree of flexibility. They also offer improved performance in many situations and make it possible to simplify common code constructs. The ...

“I love writing pagination code!”…said no one ever. After what seems like the millionth time writing a list pager from scratch, we’ve come up with a handy generic class to plug in for .NET API ...

When designing applications, it is important to know when to use an abstract class and when to use an interface. Although abstract classes and interfaces seem similar in some ways, there are key ...