C# 批改IP 没反应

C# 修改IP 没反应
我用下面的代码来修改IP地址，程序执行过后 没有反应，IP地址没有修改过来 ，不知道怎么回事，请高手指点一下
1、在 “解决方案资源管理器” 右击 “引用” 添加 “System.Management” 的引用。
2、添加 “using System.Management;”。 

        static void SetNetworkAdapter()
        {
            ManagementBaseObject inPar = null;
            ManagementBaseObject outPar = null;
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if (!(bool)mo["IPEnabled"])
                    continue;

                //设置ip地址和子网掩码 
                inPar = mo.GetMethodParameters("EnableStatic");
                inPar["IPAddress"] = new string[] { "192.168.16.248", "192.168.16.249" };// 1.备用 2.IP
                inPar["SubnetMask"] = new string[] { "255.255.255.0", "255.255.255.0" };
                outPar = mo.InvokeMethod("EnableStatic", inPar, null);

                //设置网关地址 
                inPar = mo.GetMethodParameters("SetGateways");
                inPar["DefaultIPGateway"] = new string[] { "192.168.16.2", "192.168.16.254" }; // 1.网关;2.备用网关
                outPar = mo.InvokeMethod("SetGateways", inPar, null);

                //设置DNS 

                inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
                inPar["DNSServerSearchOrder"] = new string[] { "211.97.168.129", "202.102.152.3" }; // 1.DNS 2.备用DNS
                outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);
                break;
            }
        }
[解决办法]
给个参考：
http://www.cnblogs.com/greystar/archive/2008/02/01/2235392.html

using System;
using System.Management;
 
public class ChangeIP
{
 
 
 
    private ManagementBaseObject iObj = null;
    private ManagementBaseObject oObj = null;
    private ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
    private readonly ManagementObjectCollection moc;
 
    ///<summary>
    /// example:
    ///<code>
    /// ChangeIP o = new ChangeIP();
    /// string[] ipList = new string[]{"192.168.0.253","192.168.0.250"};
    /// string[] subnetList = new string[]{"255.255.255.0","255.255.255.0"};
    /// o.ChangeTo(ipList,subnetList);
    ///</code>
    ///</summary>
    public ChangeIP()
    {
        moc = mc.GetInstances();
    }
 
    ///<summary>cortrol</summary>
    ///<param name="ipAddr">IPAddr List</param> 
 
    ///<param name="subnetMask">subnetMask List</param>
    public void ChangeTo(string[] ipAddr, string[] subnetMask)
    {
        foreach (ManagementObject mo in moc)
        {
            if (!(bool)mo["IPEnabled"]) continue;
 
            iObj = mo.GetMethodParameters("EnableStatic");
            iObj["IPAddress"] = ipAddr;
            iObj["SubnetMask"] = subnetMask;
            oObj = mo.InvokeMethod("EnableStatic", iObj, null);
        }
    }
 
    ///<summary>cortrol</summary>
    ///<param name="ipAddr">IPAddr List</param>
    ///<param name="subnetMask">subnetMask List</param>
    ///<param name="gateways">gateway List</param>
    ///<param name="gatewayCostMetric">gateway CostMetric List, example: 1</param>
    public void ChangeTo(string[] ipAddr, string[] subnetMask, string[] gateways, string[] gatewayCostMetric)
    {
        foreach (ManagementObject mo in moc)
        {
            if (!(bool)mo["IPEnabled"]) continue;
 
            iObj = mo.GetMethodParameters("EnableStatic");
            iObj["IPAddress"] = ipAddr;
            iObj["SubnetMask"] = subnetMask;
            oObj = mo.InvokeMethod("EnableStatic", iObj, null);
 
            iObj = mo.GetMethodParameters("SetGateways");
            iObj["DefaultIPGateway"] = gateways;
            iObj["GatewayCostMetric"] = gatewayCostMetric; 
 
            oObj = mo.InvokeMethod("SetGateways", iObj, null);
        }
    }
 
    ///<summary>cortrol</summary>
    ///<param name="ipAddr">IPAddr List</param>
    ///<param name="subnetMask">subnetMask List</param>
    ///<param name="gateways">gateway List</param>
    ///<param name="gatewayCostMetric">gateway CostMetric List, example: 1</param>
    ///<param name="dnsServer">DNSServer List</param>
    public void ChangeTo(string[] ipAddr, string[] subnetMask, string[] gateways, string[] gatewayCostMetric, string[] dnsServer)
    {
        foreach (ManagementObject mo in moc)
        {
            if (!(bool)mo["IPEnabled"]) continue;
 
            iObj = mo.GetMethodParameters("EnableStatic");
            iObj["IPAddress"] = ipAddr;
            iObj["SubnetMask"] = subnetMask;
            oObj = mo.InvokeMethod("EnableStatic", iObj, null);
 
            iObj = mo.GetMethodParameters("SetGateways");
            iObj["DefaultIPGateway"] = gateways;
            iObj["GatewayCostMetric"] = gatewayCostMetric;
            oObj = mo.InvokeMethod("SetGateways", iObj, null);
 
            iObj = mo.GetMethodParameters("SetDNSServerSearchOrder");
            iObj["DNSServerSearchOrder"] = dnsServer;
            oObj = mo.InvokeMethod("SetDNSServerSearchOrder", iObj, null);
        }
    }
 
    ///<summary>DHCPEnabled</summary> 
 
    public void EnableDHCP()
    {
        foreach (ManagementObject mo in moc)
        {
            if (!(bool)mo["IPEnabled"]) continue;
 
            if (!(bool)mo["DHCPEnabled"])
            {
                iObj = mo.GetMethodParameters("EnableDHCP");
                oObj = mo.InvokeMethod("EnableDHCP", iObj, null);
            }
        }
    }
}