How many types of design patterns available in .NET?

http://www.dotnet-tricks.com/Tutorial/designpatternslist

Design Patterns are technology independent and mainly categorized in three categories. Creational, behavioral and structutal. Any .NET compliant language can implement any of the design pattern form above mentioned categories which are collectively known as Gang-of-Four(GOF).

There are Hundreds of design patterns .... But, 23 are the foundation of all... These 23 were grouped in 3 Main Groups ... 1.Creational 2.Structural and 3.Behavior Patterns .... To know in detail post me ur mail id....