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