C＃获取计算机的MAC地址＆QUOT; OFFLINE＆QUOT; [英] C# Get Computer's MAC address "OFFLINE"

问题描述

有没有什么办法让计算机的MAC地址时，有在C＃中没有互联网连接？
我'能够得到当我有联系，但不是能够得到当我下线。但我强烈需要的MAC地址我的工作。

我在网上code;

  VAR MACADDR =
      （NIC从在NetworkInterface.GetAllNetworkInterfaces（）
       其中，nic.OperationalStatus == OperationalStatus.Up
       选择nic.GetPhysicalAddress（）的ToString（））FirstOrDefault（）。
 

解决方案

从WMI：

 公共静态字符串GetMACAddress1（）
{
    ManagementObjectSearcher objMOS =新ManagementObjectSearcher（SELECT * FROM Win32_NetworkAdapterConfiguration的）;
    ManagementObjectCollection objMOC = objMOS.Get（）;
    字符串MACADDRESS =的String.Empty;
    的foreach（的ManagementObject objMO在objMOC）
    {
        反对tempMacAddrObj = objMO [MACADDRESS];        如果（tempMacAddrObj == NULL）//跳过对象没有MACADDRESS
        {
            继续;
        }
        如果（MACADDRESS ==的String.Empty）//只从具有MAC地址第一卡返回MAC地址
        {
            MACADDRESS = tempMacAddrObj.ToString（）;
        }
        objMO.Dispose（）;
    }
    MACADDRESS = macAddress.Replace（：，）;
    返回MACADDRESS;
}
 

从System.Net命名空间：

 公共静态字符串GetMACAddress2（）
{
    的NetworkInterface [] =网卡NetworkInterface.GetAllNetworkInterfaces（）;
    字符串sMacAddress =的String.Empty;
    的foreach（在网卡的NetworkInterface适配器）
    {
        如果（sMacAddress ==的String.Empty）//只能从第一张卡返回MAC地址
        {
            // IPInterfaceProperties属性= adapter.GetIPProperties（）;线不需要
            sMacAddress = adapter.GetPhysicalAddress（）的ToString（）。
        }
    }返回sMacAddress;
}
 

略低于<修改href=\"http://www.c-sharpcorner.com/uploadfile/ahsanm.m/how-to-get-the-mac-address-of-system-using-Asp-NetC-Sharp/\">How获取系统的MAC地址 - C-尖角

Is there any way to get computer's mac address when there is no internet connection in c#? I'am able to get when I have connection but not able to get when I am offline. But strongly I need the mac address for my work.

My online code;

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

解决方案

From 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;
}

From System.Net namespace:

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;
}

Slightly modified from How to get the MAC address of system - C-Sharp Corner

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