[DeveloperInfo("Wagwei")]    public class DataCenterOp : IWagDataCenter    {        string _sConn = string.Empty;        Dictionary<string, ConnAndTrans> _dicConnAndTrans;        DBType _DBType = DBType.ACCESS;        public DBType DatabaseType;        public void Init(string conn, DBType dbType);        public void TryToConnect();                #region 构造(多态)        public DataCenterOp()        {        }        public DataCenterOp(string conn, DBType dbType);        public void InitSqlServerOp(string dataSource, string password, string initialCatalog);        public void InitSqlServerOp(string dataSource, string initialCatalog);        public void InitAccessOp(string dataSource, string password);        public void InitAccessOpNew(string dataSource, string password);        public void InitText(string file);        public void InitExcelOp(string dataSource, string pwd, string hdr, string imex);        public void InitOracleOp(string userId, string dataSource, string pwd, string distibtx);        #endregion        #region 事务: 创建, 提交, 回滚, 获取        public string CreateTran();        public void CommitTran(string transGuid);        public void RollbackTran(string transGuid);        #endregion        #region 执行sql语句        public object ExecScalar(string sql, string transGuid = "");        public object ExecScalar(SqlBuilder sqlB, string transGuid);        public object ExecScalar(SqlBuilder[] arraySqlB, string transGuid);        public int ExecNonQuery(string sql, string transGuid);        public int ExecNonQuery(string sql);        public int ExecNonQuery(SqlBuilder sqlB, string transGuid);        public int ExecNonQuery(SqlBuilder sqlB);        public int[] ExecNonQuery(SqlBuilder[] arraySqlB, string transGuid);        #endregion        #region 获取dt, ds        public DataTable GetDt(string sql, string tableName, bool isSchema, string transGuid);        public DataTable GetDt(SqlBuilder sqlB, bool isSchema, string transGuid);        public DataSet GetDs(string sqls, string tableNames, bool isSchema, string transGuid);        public DataSet GetDs(SqlBuilder[] arraySqlB, bool schema, string transGuid);        #endregion        #region 更新dt, ds        public void UpdateTable(DataTable dt, string tableName, string keyFields, string updateFields, string transGuid);        public void UpdateTableWithoutConflict(DataTable dt, string tableName, string keyFields, string updateFields, string transGuid);        #endregion        #region 更新数据(根据DataInfo)        public void UpdateDataInfo(List<DataInfo> listDataInfo, string transGuid);        #endregion        #region 更新数据(插入, 删除, 更新), 根据FieldAndValue        //插入        public int InsertData(string tableName,                                FieldAndValue[] keyFieldsAndValue,                                FieldAndValue[] UpdateFieldsAndValue,                                string transGuid);        //删除        public int DeleteData(string tableName,                                FieldAndValue[] FieldsAndValues,                                string transGuid);                                        //更新        public int UpdateData(string tableName,                                FieldAndValue[] keyFieldsAndValue,                                FieldAndValue[] UpdateFieldsAndValue,                                string transGuid);        #endregion        #region 常用数据库操作        public DataTable GetDmExecSessions(int type = 0);                public void InitializeDatabase();                public string GetGenCode(string id);                #region 将T_Sys_Variables(var_key, var_value, remark)表作为配置信息存储媒介        public string CfgGetValue(string key);        public bool CfgSetValue(string key, string value);        #endregion        #endregion    }//end class