public string FieldValuesCommaList()
        {
            string _cm, _cl = string.Empty;
            bool _bool;

            for (int i = 0; i < Reader.FieldCount; i++)
            {
                DateTime _date;
                _cm = Reader.GetValue(i).ToString();
                if (string.IsNullOrEmpty(_cm)) _cm = "null";
                else if (Reader.GetFieldType(i) == typeof(string)) _cm = "'" + MakeApostrofDoublicated(_cm) + "'";
                else if (Reader.GetFieldType(i) == typeof(bool))
                {
                    _bool = (bool)Reader.GetValue(i);
                    if (_bool) _cm = "1"; else _cm = "0";
                }
                else if (Reader.GetFieldType(i) == typeof(DateTime))
                {
                    _date = (DateTime)Reader.GetValue(i);
                    _cm = "'" + _date.ToString("yyyy.MM.dd") +"'";
                }
                _cl += _cm;
                if (i < (Reader.FieldCount - 1)) _cl += ", ";
            }
            return _cl;
        }

        public static string MakeApostrofDoublicated(string cm)
        {
            int nl;
            string cres = string.Empty;
            string ch;

            if (cm.Contains("'"))
            {
                for (nl = 0; nl < cm.Length; nl++)
                {
                    cres += ch = cm.Substring(nl, 1);
                    if (ch == "'") cres += "'";
                }
            }
            else cres = cm;
            return cres;
        }