How to get the computer name using C#?

Question

_{Wednesday, May 3, 2006 5:30 AM | 4 votes}

Hi all,

Does anyone know how to get the computer name using c#?

Thanks

All replies (21)

_{Wednesday, May 3, 2006 6:39 AM ✅Answered | 38 votes}

System.Environment.MachineName

_{Monday, August 13, 2007 9:09 AM}

i cannot use the

"System.Environment.MachineName " .

some one told me to use=

using System.Security.Principal;

WindowsIdentity.GetCurrent().Name.ToString();

but the last line isn't  working.

plz, i need this solution.

_{Monday, August 13, 2007 9:27 AM | 3 votes}

Try using this

Code Snippet

SystemInformation.ComputerName

_{Wednesday, April 2, 2008 12:21 PM | 1 vote}

_{Wednesday, April 2, 2008 12:24 PM | 1 vote}

System.Security.Principal.WindowsIdentity.GetCurrent().Name.ToString();

_{Wednesday, July 1, 2009 4:43 PM}

This works.  no ned to import System.Security explicitly.   //    using System.Security.Principal;

My nephew says: "Mathematics and Politics are a part of life."

_{Thursday, September 3, 2009 8:09 PM | 2 votes}

string serverName = System.Windows.Forms.SystemInformation.ComputerName;

_{Monday, June 7, 2010 12:24 PM | 7 votes}

using System;
using System.Net;

public static string GetFQDN()
{
string domainName = NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;
string hostName = Dns.GetHostName();
string fqdn = “”;
if (!hostName.Contains(domainName))
fqdn = hostName + “.” + domainName;
else
fqdn = hostName;

return fqdn;
}

Hope this helps

:)

_{Wednesday, June 9, 2010 3:38 PM}

Hello Mattias...Thank you. it  helped me.

_{Wednesday, June 9, 2010 4:06 PM | 1 vote}

Why don't you just use

string machineName = System.Environment.MachineName;
Console.WriteLine(machineName);

_{Wednesday, December 21, 2011 12:58 PM}

Yes. It works system.Environment.Machinename giving the machine name.

_{Thursday, December 22, 2011 11:16 PM}

I'm new to C#.  I played with sach's code just a bit and go this to work:

        private void button1_Click(object sender, EventArgs e)
        {
            string domainName = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;
            string hostName = Dns.GetHostName();
            string fqdn = "";
            if (!hostName.Contains(domainName))
                fqdn = hostName + "." + domainName;
            else
                fqdn = hostName;
            MessageBox.Show(fqdn);
        }

_{Monday, April 9, 2012 10:43 PM}

Try this,     string computer_name = System.Environment.GetEnvironmentVariable("COMPUTERNAME");

Naren.

_{Thursday, December 27, 2012 3:29 PM}

Al final esta fue la que me funciono:

           //Se imprimen los valores iniciales de la sesión

           textBoxSistema.Text = System.Windows.Forms.SystemInformation.ComputerName;

_{Tuesday, April 30, 2013 8:40 PM}

Do not use IP/DNS based solutions.  They will fail in DHCP environments.

_{Wednesday, July 3, 2013 3:16 PM}

Works fine.

_{Sunday, May 25, 2014 4:38 PM}

 Private m_CurUser As String

    Public ReadOnly Property CurrentUser As String
Get
If String.IsNullOrEmpty(m_CurUser) Then
Dim who As System.Security.Principal.IIdentity = System.Security.Principal.WindowsIdentity.GetCurrent()

If who Is Nothing Then
m_CurUser = Environment.UserDomainName & "\ & Environment.UserName
Else
m_CurUser = who.Name
End If
End If
Return m_CurUser
End Get
End Property

_{Wednesday, February 11, 2015 11:09 AM}

if i'm not mistaking this would return the current user's name

_{Wednesday, February 11, 2015 1:29 PM}

if using ASP.NET MVC; use

HttpServerUtility ss = new HttpServerUtility();
ss.MachineName;

Please remember to mark the replies as answers if they help and unmark them if they provide no help.

_{Saturday, February 14, 2015 8:55 PM}

using System;
using System.IO;
using System.Speech.Synthesis;
using System.Windows.Forms;
using System.Net;

  private void Button_Click(object sender, EventArgs e)
        {
            string domainName = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;
            string hostName = Dns.GetHostName();
            string fqdn = "";
            if (!hostName.Contains(domainName))
                fqdn = hostName + "." + domainName;
            else
                fqdn = hostName;
            //MessageBox.Show(fqdn); //<-- this is a Box
            ambiance_Label2.Text = (fqdn); //<-- Create a Label. Change the label to your pc Name :)
        }
    } 

INJOY <3

_{Monday, March 4, 2019 6:29 PM}

One more way, which will return the "full computer name" as per the Computer Properties dialog:

System.Net.Dns.GetHostEntry("localhost").HostName