System.Net.IPAddress.TryParse C# (CSharp) Method

        public static bool TryParse(string ipString, out IPAddress address)
        {
            address = IPAddressParser.Parse(ipString, true);
            return (address != null);
        }

        /// <summary>
        /// Get IPv4 address from notation (xxx.xxx.xxx.xxx) or hostname
        /// </summary>
        public static NetAddress Resolve(string ipOrHost)
        {
            if (string.IsNullOrEmpty(ipOrHost))
            {
                throw new ArgumentException("Supplied string must not be empty", "ipOrHost");
            }

            ipOrHost = ipOrHost.Trim();

            NetAddress ipAddress = null;

            if (NetAddress.TryParse(ipOrHost, out ipAddress))
            {
                if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
                {
                    return(ipAddress);
                }
                throw new ArgumentException("This method will not currently resolve other than ipv4 addresses");
            }

            // ok must be a host name
            try
            {
                //var addresses = Dns.GetHostAddresses(ipOrHost);
                var addressesTask = Dns.GetHostAddressesAsync(ipOrHost);
                addressesTask.RunSynchronously();
                //var address = addressesTask.Result;
                if (addressesTask.Result == null)
                {
                    return(null);
                }
                foreach (var address in addressesTask.Result)
                {
                    if (address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        return(address);
                    }
                }
                return(null);
            }
            catch (SocketException ex)
            {
                if (ex.SocketErrorCode == SocketError.HostNotFound)
                {
                    //LogWrite(string.Format(CultureInfo.InvariantCulture, "Failed to resolve host '{0}'.", ipOrHost));
                    return(null);
                }
                else
                {
                    throw;
                }
            }
        }