C # get native IP address and convert string

        /// <summary>        ///IP Address Conversions/// </summary>        /// <param name= "ipaddr" >IP address for integer type</param>        /// <returns>the IP address of the string</returns>        Private stringUINTIPTOSTRINGIP (UINTipaddr) {            stringHexstr = ipaddr. ToString ("X8"); intIP1 = Convert.ToInt32 (hexstr.substring (0,2), -); intIP2 = Convert.ToInt32 (hexstr.substring (2,2), -); intIP3 = Convert.ToInt32 (hexstr.substring (4,2), -); intIP4 = Convert.ToInt32 (hexstr.substring (6,2), -); returnIP4 +"."+ IP3 +"."+ IP2 +"."+ip1; }        /// <summary>        ///IP Address Conversions/// </summary>        /// <param name= "ipaddr" >the IP address of the string</param>        /// <returns>IP address for integer type</returns>        Private UINTStringiptouintip (stringipaddr) {            string[] ips = ipaddr. Split ('.'); returnConvert.touint32 (ips[3]) * the* the* the+ Convert.touint32 (ips[2]) * the* the+ Convert.touint32 (ips[1]) * the+ Convert.touint32 (ips[0]); }        /// <summary>        ///get the native IP address/// </summary>        /// <returns></returns>        Private stringgetlocalipaddress () {stringResultip =string.            Empty; System.net.ipaddress[] IPs=System.Net.Dns.GetHostEntry (System.Net.Dns.GetHostName ()).            AddressList; foreach(System.Net.IPAddress IPinchIPs) {                if(Iscorrentip (IP. ToString ())) {Resultip=IP.                    ToString ();  Break; }            }            returnResultip; }        /// <summary>        ///Verify that the IP address is valid/// </summary>        /// <param name= "IP" ></param>        /// <returns></returns>        Private BOOLIscorrentip (stringIP) {            stringPATTRN =@"(\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) \. (\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) \. (\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) \. (\d{1,2}|1\d\d|2[0-4]\d|25[0-5])"; if(System.Text.RegularExpressions.Regex.IsMatch (IP, pattrn)) {return true; }            Else            {                return false; }        }

C # get native IP address and convert string