计算机网卡获取信息获取、启用、停止

/// <summary>
        /// 网卡列表
        /// </summary>
        public void NetWorkList()
        {
            string manage = "SELECT * From Win32_NetworkAdapter";
            
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(manage);
         //   ManagementObjectSearcher searcher = new ManagementObjectSearcher();
            ManagementObjectCollection collection = searcher.Get();
            List<string> netWorkList = new List<string>();
            foreach (ManagementObject obj in collection)
            {
              
                netWorkList.Add(obj["Name"].ToString());
            }
            this.cmbNetWork.DataSource = netWorkList;
        }
        /// <summary>
        /// 禁用网卡
        /// </summary>5
        /// <param name="netWorkName">网卡名</param>
        /// <returns></returns>
        public bool DisableNetWork(ManagementObject network)
        {
            try
            {
              
                network.InvokeMethod("Disable", null);
                return true;
            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 启用网卡
        /// </summary>
        /// <param name="netWorkName">网卡名</param>
        /// <returns></returns>
        public bool EnableNetWork(ManagementObject network)
        {
            try
            {
                network.InvokeMethod("Enable", null);
                return true;
            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 网卡状态
        /// </summary>
        /// <param name="netWorkName">网卡名</param>
        /// <returns></returns>
        public bool NetWorkState(string netWorkName)
        {
            string netState = "SELECT * From Win32_NetworkAdapter";
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);
            ManagementObjectCollection collection = searcher.Get();
            foreach (ManagementObject manage in collection)
            {
                if (manage["Name"].ToString() == netWorkName)
                {
                    return true;
                }
            }
            return false;
        }
        /// <summary>
        /// 得到指定网卡
        /// </summary>
        /// <param name="networkname">网卡名字</param>
        /// <returns></returns>
        public ManagementObject NetWork(string networkname)
        {
            string netState = "SELECT * From Win32_NetworkAdapter";
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);
            ManagementObjectCollection collection = searcher.Get();
            foreach (ManagementObject manage in collection)
            {
                if (manage["Name"].ToString() == networkname)
                {
                    return manage;
                }
            }

            return null;
        }
        private void btnStart_Click(object sender, EventArgs e)
        {
            if (NetWorkState(this.cmbNetWork.Text.ToString()))
            {
                if (!EnableNetWork(NetWork(this.cmbNetWork.Text.ToString())))
                {
                    MessageBox.Show("开启网卡失败!");
                }
                else
                {
                    MessageBox.Show("开启网卡成功!");
                }
            }
            else
            {
                MessageBox.Show("网卡己开启!");
            }
         //   NetWorkList();
        }
        private void btnStop_Click(object sender, EventArgs e)
        {
            if (NetWorkState(this.cmbNetWork.Text.ToString()))
            {
                if (!DisableNetWork(NetWork(this.cmbNetWork.Text.ToString())))
                {
                    MessageBox.Show("禁用网卡失败!");
                }
                else
                {
                    MessageBox.Show("禁用网卡成功!");
                }
            }
            else
            {
                MessageBox.Show("网卡己禁用!");
            }
          //  NetWorkList();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            GetMac();
        }

        public void GetMac()
        {
            ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE Description = 'Broadcom 590x 10/100 Ethernet'or Description ='Broadcom 802.11g Network Adapter'");
            ManagementObjectCollection queryCollection = query.Get();
            foreach (ManagementObject mo in queryCollection)
            {
                this.cmbNetWork.Items.Add(mo["Description"]);
                richTextBox1.AppendText(string.Format("Network Card: {0}/r/n", mo["Description"]));
                richTextBox1.AppendText(string.Format("  MAC Address: {0}/r/n", mo["MACAddress"]));
                richTextBox1.AppendText(string.Format("  IPEnabled: {0}/r/n", mo["IPEnabled"]));
                mo["IPEnabled"] = false;
            }
            
        }
        private void button1_Click(object sender, EventArgs e)
        {
            GetMac();
        }