Gets the user name of the person who started the current thread.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Public Shared ReadOnly Property UserName As String
Dim value As String
value = Environment.UserName
public static string UserName { get; }
public:
static property String^ UserName {
String^ 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
Imports System
Class Sample
Public Shared Sub Main()
Console.WriteLine()
' <-- Keep this information secure! -->
Console.WriteLine("UserName: {0}", Environment.UserName)
End Sub 'Main
End Class '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---!
'
// 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
using namespace System;
int 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 S"!---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