Tuesday, January 29, 2013

C# Questions and Answers

What are namespaces?

Namespaces are heavily used in C# programming in two ways. First, the .NET Framework uses namespaces to organize its many classes. Second, declaring your own namespaces can help you control the scope of class and method names in larger programming projects. Use the namespace keyword to declare a namespace

Namespaces have the following properties:
  • They organize large code projects.
  • They are delimited by using the . operator.
  • The using directive obviates the requirement to specify the name of the namespace for every class.
  • The global namespace is the "root" namespace: global::System will always refer to the .NET Framework namespace System.
Read more at MSDN: Namespaces (C# Programming Guide)

Namespaces are a way of grouping type names and reducing the chance of name collisions. A namespace provides a fundamental unit of logical code grouping.
( Understanding and Using Assemblies and Namespaces in .NET )

What is the GAC?

GAC stands for global assembly cache. It is a machine-wide common language runtime code cache. The global assembly cache stores assemblies specifically designated to be shared by several applications on the computer.

Read more at MSDN: Global Assembly Cache

What is a class?

A class is a construct that enables you to create your own custom types by grouping together variables of other types, methods and events. A class is like a blueprint. It defines the data and behavior of a type.

For more information, see MSDN: Classes (C# Programming Guide).
Previous posts:
C# Questions and Answers
C# Questions and Answers – Part 2
C# Questions and Answers – Part 3

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