how to get mac address using C#.net

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I have a question concerning the code below

C#

using System;
using System.Text;
using System.Windows;
using System.Net.NetworkInformation;

namespace get_nick_mac
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {

            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
            //for each j you can get the MAC
            PhysicalAddress address = nics[j].GetPhysicalAddress();
            byte[] bytes = address.GetAddressBytes();
            for (int i = 0; i < bytes.Length; i++)
            {
                // Display the physical address in hexadecimal.
                Console.Write("{0}", bytes[i].ToString("X2"));
                // Insert a hyphen after each byte, unless we are at the end of the
                // address.
                if (i != bytes.Length - 1)
                {
                    Console.Write("-");
                }
            }
        }
    }
}

I get this exception
The name "j" does not exist in the current context
On line PhysicalAddress address = nics[j].GetPhysicalAddress();

Thanks in advanced

Posted 8-Dec-12 21:30pm

Paul May III

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Surendra0x2 · Answer 1 · 2012-12-08T21:37:00

This Article Explained 3 Ways to Get Mac Address-

http://www.c-sharpcorner.com/uploadfile/ahsanm.m/how-to-get-the-mac-address-of-system-using-Asp-NetC-Sharp/[^]

and use This Link Too-

http://www.dotneter.com/get-mac-address-using-c[^]

On Code Project this Question Asked b4-

get MAC address in message box using c#[^]

Krunal Rohit · Answer 2 · 2012-12-08T21:32:00

Solution 1

it should work, perhaps :

C#

public static PhysicalAddress GetMacAddress()
            {
            foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
                {
                if (nic.NetworkInterfaceType == NetworkInterfaceType.Ethernet &&
                    nic.OperationalStatus == OperationalStatus.Up)
                    {
                    return nic.GetPhysicalAddress();
                    }
                }
            return null;
            }

Posted 8-Dec-12 21:32pm

Krunal Rohit

Comments

Paul May III 9-Dec-12 18:30pm

Krunal,

Sir,

Thanks for the comment. I'm new to code and have only played around for about a year. I started this as project as C# / WPF, I added the WPF Toolkit from the referance option, thinking this was the reason from referancs errors i recieved in the beggining, I was not sure exactly sure what to remove from my existing code and how to add this. I'll keep working on it.

Respectfully,

Thanks again.

pmIII

[no name] 9-Dec-12 22:46pm

You're welcome.. Good Luck :)