'ManagementClass' does not exist in the namespace 'System.Management'

Question

Hi i'm using this method for get the mac address

public string GetMACAddress()
{
    System.Management.ManagementClass mc = default(System.Management.ManagementClass);
    ManagementObject mo = default(ManagementObject);
    mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

    ManagementObjectCollection moc = mc.GetInstances();
    foreach (var mo in moc)
    {
        if (mo.Item("IPEnabled") == true)
        {
            return mo.Item("MacAddress").ToString();
        }else
            return null;

    }

}

but i receive this error

Compiler Error Message: CS0234: The type or namespace name 'ManagementClass' does not exist in the namespace 'System.Management' (are you missing an assembly reference?)

What i have to do for fix it?

thanks

Read the step by step way to add the reference of [System.Management](http://stackoverflow.com/a/22223788/3240038) into your project. — Suhaib Janjua, Apr 11 '17 at 23:09

MoominTroll · Accepted Answer · 2018-02-09T12:10:51.697

32

You need to add a reference to System.Management in your project.

edited Feb 09 '18 at 12:10

answered Nov 25 '09 at 16:36

MoominTroll

2,502
21
24

link is broken :( – Friendly Genius Feb 09 '18 at 02:27
Updated link! :) – MoominTroll Feb 09 '18 at 12:11
Is it working in 2017? I couldn't find a System.management in the reference pop up. I checked all libs start with System. but still got the same error. Do I need to install anything on Mac? – yang Feb 22 '18 at 16:07
Not sure about Mac specifically unfortunately, but if I search System.Management in VS 2017 I get [results](https://imgur.com/a/veA9N) – MoominTroll Feb 22 '18 at 16:47

score 13 · Answer 2 · answered Nov 25 '09 at 16:44

I think the issue here is that you don't have a proper "pointer" to the System.Management assembly. You must:

Use a using statement - in some of your code, you didn't prefix classes w/ System.Management, so you should either include:

a.)

using System.Management

or

b.) a using block

using(System.Management) 
{  
//your code goes here
}

Next, you need to have a real assembly reference. To do this in Visual Studio, right click on your project (or on References) in the Solution Explorer window and click Add Reference. After the list tabulates, find System.Management.dll in the .NET tab. Once you add it, it should work!

score 8 · Answer 3 · edited May 07 '12 at 12:14

8

In the solution explorer:

add reference
find and add system.management in .NET class

that's it

edited May 07 '12 at 12:14

Matthias

7,432
6
55
88

answered May 07 '12 at 09:11

Ajay Tyagi

81
1
1

score 3 · Answer 4 · answered Nov 25 '09 at 16:33

3

Have you got the System.Management assembly referenced?

answered Nov 25 '09 at 16:33

Mongus Pong

11,337
9
44
72

score 2 · Answer 5 · edited Sep 08 '16 at 14:48

2

Please first make sure you add the Library Systems.Management in to your project references.

Then just use that referred assembly by including in your class.

using System.Windows;

edited Sep 08 '16 at 14:48

Liam

27,717
28
128
190

answered Sep 08 '16 at 13:19

Khawaja Asim

1,327
18
38

'ManagementClass' does not exist in the namespace 'System.Management'

5 Answers5

Linked