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C# - Gang Of Four - Design Patterns, Elements Of Reusable Object Oriented Software Erich Gamma, John M. Vlissides, Ralph Johnson, Richard Helm
Publisher: Addison-Wesley Professional

Classical formulation of it could be found in “Design Patterns, Elements of Reusable Object Oriented Software” by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides (The Gang of Four). Design Patterns: Elements of Reusable Object-Oriented Software. Gang of four is nothing to do with technical sense, it's name of four authors(Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides) of book Design Patterns: Elements of Reusable Object-Oriented Software. This concept is used when you want some information stored in one object, in C# by the introduction of “Events and Delegates” concept. Gamma is one of the “Gang of Four” who shook up software development back in 1994 with the book Design Patterns: Elements of Reusable Object-Oriented Software. In design pattern we often listen the term Gang of Four, GOF, or GO4. But I am not coming here to reinvent the wheel. I am gonna start a new series for a very interesting topic which is object oriented design patterns. While blog posts and other online sources are good for quick answers, nothing beats sitting down with a well-written book on a subject. The Gang of Four (GoF)(from Design Patterns: Elements of Reusable Object-Oriented Software, Addison-Wesley Professional Computing Series, by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides). In next posts, I will pick each one of original 23 GOF design patterns, discuss pros, cons & need, UML diagrams for patterns and simple code illustration in C#. The resolution of the problem is easier in C#, because all classes are inherited from the same “object” class. I am trying here… References: Addison Wesley – Gang of Four – Design Patterns, Elements of Reusable Object Oriented Software. Yeah, I hear some of you are saying now: "Hey, did you ever hear about something called gang of four?!!".