Question

当c＃中没有互联网连接时，有没有办法获取计算机的mac地址？我能够在连接时获得但在离线时无法获得。但强烈的是，我需要为我的工作提供mac地址。

我的在线代码;

var macAddr =
      (from nic in NetworkInterface.GetAllNetworkInterfaces()
       where nic.OperationalStatus == OperationalStatus.Up
       select nic.GetPhysicalAddress().ToString()).FirstOrDefault();

Answer 1

来自WMI：

public static string GetMACAddress1()
{
    ManagementObjectSearcher objMOS = new ManagementObjectSearcher("Select * FROM Win32_NetworkAdapterConfiguration");
    ManagementObjectCollection objMOC = objMOS.Get();
    string macAddress = String.Empty;
    foreach (ManagementObject objMO in objMOC)
    {
        object tempMacAddrObj = objMO["MacAddress"];

        if (tempMacAddrObj == null) //Skip objects without a MACAddress
        {
            continue;
        }
        if (macAddress == String.Empty) // only return MAC Address from first card that has a MAC Address
        {
            macAddress = tempMacAddrObj.ToString();              
        }
        objMO.Dispose();
    }
    macAddress = macAddress.Replace(":", "");
    return macAddress;
}

来自System.Net命名空间：

public static string GetMACAddress2()
{
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    String sMacAddress = string.Empty;
    foreach (NetworkInterface adapter in nics)
    {
        if (sMacAddress == String.Empty)// only return MAC Address from first card  
        {
            //IPInterfaceProperties properties = adapter.GetIPProperties(); Line is not required
            sMacAddress = adapter.GetPhysicalAddress().ToString();
        }
    } return sMacAddress;
}

从How to get the MAC address of system - C-Sharp Corner

略微修改

Answer 2

您可以在C＃中使用WMI（System.Management）来获取包含Win32_NetworkAdapter属性的MACAddress列表。

http://msdn.microsoft.com/en-gb/library/windows/desktop/aa394216(v=vs.85).aspx

C＃获取计算机的MAC地址“离线”

2 个答案: