The observer design pattern defines one-to-many relationship between objects so that changes to one object can be notified to the other dependent objects The Observer design pattern falls under ...

Why use the proxy design pattern? The proxy design pattern can be used in situations where you would like to defer instantiation of a class until the time it is needed. The proxy is an object that ...

Implementing design patterns in the Microsoft .NET Framework isn't all that hard to do; understanding what each pattern does for you and picking which one to use is the real issue.

Andras Nemes, a web developer on the .NET platform, is doing a series of blog posts on the SOLID design principles and other design patterns he has found interesting in object-oriented programming ...

The decorator pattern is a good way to add extensibility to an application, as it follows SOLID design principles. Learn how to use it by adding validation logic to a form.