using System;

using System.Data;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {   

        // Reference: https://stackoverflow.com/questions/10822304/iterate-through-dataset

        DataSet dataSet = new DataSet();

        DataTable dataTable = new DataTable();

        dataTable.Columns.Add("PartNumber", typeof(string));

        dataTable.Columns.Add("Description", typeof(string));

​

        DataRow row = dataTable.NewRow();

        row["PartNumber"] = "P1";

        row["Description"] = "Part 01";

        dataTable.Rows.Add(row);

        row = dataTable.NewRow();

        row["PartNumber"] = "P2";

        row["Description"] = "Part 02";

        dataTable.Rows.Add(row);

        dataSet.Tables.Add(dataTable);

        foreach (DataTable table_ in dataSet.Tables)

        {

            Console.WriteLine("^^^^^^^^^^^^^^^^^");

            foreach (DataRow row_ in table_.Rows)

            {   

                string partNum = (System.String)row_["PartNumber"];

                string partDesc = (System.String)row_["Description"];

                Console.WriteLine($"Kode Material: {partNum}");

                Console.WriteLine($"Nama Material: {partDesc}");

                Console.WriteLine("-------------------");

                break;

            }

        }

        // Ref: https://stackoverflow.com/questions/19136024/how-to-parse-a-jsonstring-to-dataset

        string jsonString = "{\"Carts\":[{\"PartNum\":\"FG001\",\"Quantity\":2,\"UnitPrice\":1000},{\"PartNum\":\"FG002\",\"Quantity\":4,\"UnitPrice\":2000},{\"PartNum\":\"FG003\",\"Quantity\":5,\"UnitPrice\":1500}]}";

        DataSet cartsDs = JsonConvert.DeserializeObject<DataSet>(jsonString);

        foreach (DataTable carts in cartsDs.Tables)

        {

            Console.WriteLine("###############");

            foreach (DataRow cart in carts.Rows)

            {

                string partNum = (System.String)cart["PartNum"];

                long quantity = (System.Int64)cart["Quantity"];

                long unitPrice = (System.Int64)cart["UnitPrice"];

                Console.WriteLine($"PartNum: {partNum}");

                Console.WriteLine($"Quantity: {quantity}");

                Console.WriteLine($"UnitPrice: {unitPrice}");

                Console.WriteLine(">>>>>>>>>>>>>");

            }

        }

    }

}