Cannot get system identifier in WPF

Question

I programming in WPF C# and trying to get the ProcessorID (or other system identifier). I have read through MSDN - System.Management Namespace. I add the namespace, but it does not provide ManagementBaseObject Class.

using System.Management;

/* code */
System.Management.(there is no ManagementBaseObject)

Is System.Management only used in WinForms, and not WPF?

score 2 · Answer 1 · answered Jul 28 '11 at 11:07

2

You need to add a reference to System.Management.dll

(Per the "Assembly" in the documentation for that class)

answered Jul 28 '11 at 11:07

Rowland Shaw

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score 2 · Answer 2 · answered Jul 28 '11 at 11:08

2

There are some existing types with the System.Management namespace within System.Core, this is why you are seeing some types.

For ManagementBaseObject, however, you will also need to add a reference to System.Management.dll to your project.

answered Jul 28 '11 at 11:08

Tim Lloyd

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Thanks a lot, 'System.Management.dll' was a must. – Hamzeh Soboh Jul 03 '13 at 09:52

Dirk Vollmar · Accepted Answer · 2011-07-28T11:18:22.407

2

The following code will give you the processor id, given that you have added a reference to System.Management:

public static string GetProcessorID()
{
    var processorID = "";
    var query = "SELECT ProcessorId FROM Win32_Processor";

    var oManagementObjectSearcher = new ManagementObjectSearcher(query);

    foreach (var oManagementObject in oManagementObjectSearcher.Get())
    {
        processorID = (string)oManagementObject["ProcessorId"];
        break;
    }

    return processorID;  
}

edited Jul 28 '11 at 11:18

answered Jul 28 '11 at 11:13

Dirk Vollmar

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@KMC: You wouldn't have to, but as it is a method that is independent from any object state it makes sense. Also note, that the `System.Management` namespace is completely independent from whether your application is a console, Windows Forms or WPF application. – Dirk Vollmar Jul 28 '11 at 11:16

score 0 · Answer 4 · answered May 15 '20 at 14:45

The code of Dirk might return a null object. Please correct it in this way:

public static string GetProcessorID()
{
    string cpuid = "";
    ManagementObjectSearcher mbs = new ManagementObjectSearcher("Select ProcessorID From Win32_processor");
    foreach (ManagementObject mo in mbs.Get())
    {
        var processorId = mo["ProcessorID"];
        if (processorId != null)
        {
            cpuid = processorId.ToString();
            break;
        }
    }

    return cpuid;
}

Cannot get system identifier in WPF

4 Answers4