如何使用C＃获取系统的MAC ID

Question

我正在构建一个C＃应用程序，我想获取系统的MAC ID。我找到了很多代码片段，但是他们要么给出错误的答案，要么抛出异常。我不确定哪个代码段正在给出正确的答案。有人能为我提供获取MAC ID的确切代码段吗？

Answer 1

这会对你有所帮助。

public string FetchMacId()
{
    string macAddresses = "";

    foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
    {
        if (nic.OperationalStatus == OperationalStatus.Up)
        {
            macAddresses += nic.GetPhysicalAddress().ToString();
            break;
        }
    }
    return macAddresses;
}

Answer 2

System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces();

并遍历每个接口，获取每个接口的MAC地址。

另一种方法是使用管理对象：

ManagementScope theScope = new ManagementScope("\\\\computerName\\root\\cimv2");
StringBuilder theQueryBuilder = new StringBuilder();
theQueryBuilder.Append("SELECT MACAddress FROM Win32_NetworkAdapter");
ObjectQuery theQuery = new ObjectQuery(theQueryBuilder.ToString());
ManagementObjectSearcher theSearcher = new ManagementObjectSearcher(theScope, theQuery);
ManagementObjectCollection theCollectionOfResults = theSearcher.Get();

foreach (ManagementObject theCurrentObject in theCollectionOfResults)
{
    string macAdd = "MAC Address: " + theCurrentObject["MACAddress"].ToString();
    MessageBox.Show(macAdd);
}