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Environment.UserName Property

Gets the user name of the person who started the current thread.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

public static string UserName { get; }
/** @property */
public static String get_UserName ()

public static function get UserName () : String

Property Value

The name of the person logged on to the system who started the current thread.

This property can be used to identify the current user to the system and application for security or access purposes. It can also be used to customize a particular application for each user.

The following code example displays the user name of the person who started the current thread. (The user name is omitted from the code example output for security reasons.)

// Sample for the Environment.UserName property
using System;

class Sample 
{
    public static void Main() 
    {
    Console.WriteLine();
//  <-- Keep this information secure! -->
    Console.WriteLine("UserName: {0}", Environment.UserName);
    }
}
/*
This example produces the following results:
(Any result that is lengthy, specific to the machine on which this sample was tested, or reveals information that should remain secure, has been omitted and marked "!---OMITTED---!".)

UserName: !---OMITTED---!
*/

// Sample for the Environment.UserName property

import System.*;

class Sample
{
    public static void main(String[] args)
    {
        Console.WriteLine();
        //  <-- Keep this information secure! -->
        Console.WriteLine("UserName: {0}", Environment.get_UserName());
    } //main
} //Sample

/*
This example produces the following results:
(Any result that is lengthy, specific to the machine on which this sample was 
 tested, or reveals information that should remain secure, has been omitted 
 and marked "!---OMITTED---!".)

UserName: !---OMITTED---!
*/

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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