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   源码介绍

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网关、dns、掩码设置

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Management;
namespace IPSetting
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_AutoGetIP_Click(object sender, EventArgs e)
        {
            setIPDHCP();
            this.Close();
        }

        private void button2_SetIP_Click(object sender, EventArgs e)
        {
            setIPaddress(textBox1_IPAddress.Text);
            this.Close();
        }
        /// <summary>
        /// 将IP，DNS设置为自动获取
        /// </summary>
        private void setIPDHCP()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if (!(bool)mo["IPEnabled"]) continue;
                mo.InvokeMethod("SetDNSServerSearchOrder", null);
                mo.InvokeMethod("EnableStatic", null);
                mo.InvokeMethod("SetGateways", null);
                mo.InvokeMethod("EnableDHCP", null);
                break;
            }
        }
        /// <summary>
        /// 设置IP地址，掩码，网关等
        /// </summary>
        private void setIPaddress(string IPAdress)
        {
            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;
                inPar = mo.GetMethodParameters("EnableStatic");
                inPar["IPAddress"] = new string[] { IPAdress };
                inPar["SubnetMask"] = new string[] { "255.255.255.0" };
                outPar = mo.InvokeMethod("EnableStatic", inPar, null);
                inPar = mo.GetMethodParameters("SetGateways");
                inPar["DefaultIPGateway"] = new string[] { /*"172.17.123.254"*/ };
                outPar = mo.InvokeMethod("SetGateways", inPar, null);
                inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
                inPar["DNSServerSearchOrder"] = new string[] {""/* "211.137.241.34"*/,"" /*"202.97.224.69"*/ };
                outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);
                break;
            }
        }

        private void button1_SetIP_Click(object sender, EventArgs e)
        {
            setIPaddress(textBox1.Text);
            this.Close();
        }
    }
}