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Environment.UserName Property

  • Reference

Definition

Namespace:
System
Assembly:
System.Runtime.dll
Assembly:
System.Runtime.Extensions.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Source:
Environment.Unix.cs
Source:
Environment.Unix.cs
Source:
Environment.Unix.cs

Gets the user name of the person who is associated with the current thread.

public:
 static property System::String ^ UserName { System::String ^ get(); };
public static string UserName { get; }
static member UserName : string
Public Shared ReadOnly Property UserName As String

Property Value

String

The user name of the person who is associated with the current thread.

Examples

The following example displays the user name of the person who started the current thread.

// Sample for the Environment::UserName property
using namespace System;
int main()
{
   Console::WriteLine();

   //  <-- Keep this information secure! -->
   Console::WriteLine( "UserName: {0}", Environment::UserName );
}

// 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);
    }
}

// Sample for the Environment.UserName property
open System

//  <-- Keep this information secure! -->
printfn $"\nUserName: {Environment.UserName}"

' Sample for the Environment.UserName property
Class Sample
   Public Shared Sub Main()
      Console.WriteLine()
      '  <-- Keep this information secure! -->
      Console.WriteLine("UserName: {0}", Environment.UserName)
   End Sub
End Class

Remarks

You can use the UserName property to identify the user on the current thread, to the system and application for security or access purposes. It can also be used to customize a particular application for each user.

On Windows the UserName property wraps a call to the Windows GetUserName function. The domain account credentials for a user are formatted as the user's domain name, the '\' character, and user name. Use the UserDomainName property to obtain the user's domain name and the UserName property to obtain the user name.

On Unix platforms the UserName property wraps a call to the getpwuid_r function.

If an ASP.NET application runs in a development environment, the UserName property returns the name of the current user. In a published ASP.NET application, this property returns the name of the application pool account (such as Default AppPool).

Applies to

See also