private void DisplayTables(DataSet myDataset)
    {
        // Navigate Dataset
        Console.WriteLine("資料表內容 ...");
        Console.WriteLine();
           
        foreach(DataTable table in myDataset.Tables)
        {
            Console.WriteLine("TableName = " + table.TableName);
            Console.WriteLine ("{0}", "---------");
            Console.WriteLine("Columns ...");

            foreach(DataColumn column in table.Columns)
            {
                Console.Write("{0,-22}",column.ColumnName);
            }
            Console.WriteLine();
            Console.WriteLine("Number of rows = {0}", table.Rows.Count.ToString());
            Console.WriteLine("Rows ...");

            foreach(DataRow row in table.Rows)
            {
                foreach(Object value in row.ItemArray)
                {
                    Console.Write("{0,-22}",value.ToString());
                }
                Console.WriteLine();
            }
            Console.WriteLine();
        }
    }