Understand the key concepts behind composition and inheritance that allow you to build reusable and flexible types in your .NET applications. Two of the key concepts in object-oriented programming ...

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

If I have a struct that implements an interface, what is the process of converting back and forth between the two types? Simple casting does not work. I am trying to convert between arrays of the ...

In my first example, because of its internal scope, DeleteCustomer can be used by code that instantiates CustomerBase but only if that code is in the same project as CustomerBase. Because of the ...