using (C# Reference)

  • 2 minutes to read
  • Contributors

The using keyword has two major uses:

  • As a directive, when it is used to create an alias for a namespace or to import types defined in other namespaces. See using directive.

  • As a statement, when it defines a scope at the end of which an object will be disposed. See using statement.

In addition, the using static directive lets you define a type whose static members you can access without specifying a type name.

See also