How to get domain controller IP Adress

// get root of the directory data tree on a directory server
DirectoryEntry dirEntry = new DirectoryEntry("LDAP://rootDSE");
// get the hostname of the directory server of your root (I'm assuming that's what you want)
string dnsHostname = dirEntry.Properties["dnsHostname"].Value.ToString();
IPAddress[] ipAddresses = Dns.GetHostAddresses(dnsHostname);

using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Net;
    using System.Net.Sockets;
    using System.DirectoryServices.AccountManagement;
    using System.DirectoryServices.ActiveDirectory;
public doIt()
        {
            DirectoryContext mycontext = new=DirectoryContext(DirectoryContextType.Domain,"project.local");
            DomainController dc = DomainController.FindOne(mycontext);
            IPAddress DCIPAdress = IPAddress.Parse(dc.IPAddress);
        }