ASP.NET经过按钮连接ACCESS数据库并读出该数据库中的表名

/// <summary>    /// 取所有表名    /// </summary>    /// <returns></returns>    public List<string> GetTableNameList()    {         List<string> list = new List<string>();        OleDbConnection Conn = new OleDbConnection(ConnStr);        try        {            if (Conn.State == ConnectionState.Closed)                Conn.Open();            DataTable dt = Conn.GetSchema("Tables");            foreach (DataRow row in dt.Rows)            {                if (row[3].ToString() == "TABLE")                    list.Add(row[2].ToString());            }            return list;        }        catch (Exception e)        { throw e; }        finally { if (Conn.State == ConnectionState.Open) Conn.Close(); Conn.Dispose(); }    }     /// <summary>    /// 取指定表所有字段名称    /// </summary>    /// <returns></returns>    public List<string> GetTableFieldNameList(string TableName)    {        List<string> list = new List<string>();        OleDbConnection Conn = new OleDbConnection(ConnStr);        try        {            if (Conn.State == ConnectionState.Closed)                Conn.Open();            using (OleDbCommand cmd = new OleDbCommand())            {                cmd.CommandText = "SELECT TOP 1 * FROM [" + TableName + "]";                cmd.Connection = Conn;                OleDbDataReader dr = cmd.ExecuteReader();                for (int i = 0; i < dr.FieldCount; i++)                {                    list.Add(dr.GetName(i));                }            }            return list;        }        catch (Exception e)        { throw e; }        finally        {            if (Conn.State == ConnectionState.Open)                Conn.Close();            Conn.Dispose();        }    }