public static int Str2Int(string str, int defVal)
        {
            try
            {
                if (str == null || str.Length == 0)
                    return defVal;
                if (!str.StartsWith("+") && !str.StartsWith("-") && !char.IsDigit(str[0]))                      return defVal;
                return Int32.Parse(str, NumberStyles.Any);
            }
            catch
            {
                return defVal;
            }
        }