private string GetNewID(string _oldid, string _tname, string _colname, MetaDataServiceClient _mdc) { try { if (ImportMode == "0") { return(_mdc.GetNewID()); } else { if (_mdc.IsExistID(_oldid, _tname, _colname)) { throw new Exception(string.Format("在{0}表中存在{2}值为{1}的记录!", _tname, _oldid, _colname)); } else { return(_oldid); } } } catch (Exception ex) { throw ex; } }