public static string GetMD5(string sDataIn)         {             MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();             byte[] bytValue, bytHash;             bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn);             bytHash = md5.ComputeHash(bytValue);             md5.Clear();             string sTemp = "";             for (int i = 0; i < bytHash.Length; i++)             {                 sTemp += bytHash[i].ToString("X").PadLeft(2, '0');             }             return sTemp.ToLower();         }