:: Operator (C# Reference)

The namespace alias qualifier (::) is used to look up identifiers. It is always positioned between two identifiers, as in this example:

global::System.Console.WriteLine("Hello World");

Remarks

The namespace alias qualifier can be global. This invokes a lookup in the global namespace, rather than an aliased namespace.

For More Information

For an example of how to use the :: operator, see the following section:

• How to: Use the Global Namespace Alias (C# Programming Guide)

C# Language Specification

For more information, see the C# Language Specification. The language specification is the definitive source for C# syntax and usage.

See Also

Reference

C# Operators

Namespace Keywords (C# Reference)

. Operator (C# Reference)

extern alias (C# Reference)

Concepts

C# Programming Guide

Other Resources

C# Reference