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 ...

C# is a strongly typed language. This implies that when using C# you should declare a type prior to storing data in it. Though this type safety helps enforce safety and interoperability between ...

Take advantage of delegates to promote flexibility and code reuse in your .NET applications and to implement event-driven programming with ease. A delegate is a type that references a method that has ...