IP地址格式控制

        /// <summary>
        /// 验证IP格式是否输入正确
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        private bool IsIpAddress(string ip)
        {
            bool blnTest = false;
            bool _Result = true;
            Regex regex = new Regex("^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$");
            blnTest = regex.IsMatch(ip);
            if (blnTest == true)
            {
                string[] strTemp = ip.Split(new char[] { '.' });
                ip.Split(new char[] { '.' });
                for (int i = 0; i < strTemp.Length; i++)
                {
                    if (Convert.ToInt32(strTemp[i]) > 255)
                    {
                        _Result = false;
                    }
                }
            }
            else
            {
                _Result = false;
            }
            return _Result;
        }