using System;

using  Newtonsoft.Json;

using System.Collections.Generic;

​

public class MyAwesomeSomething

{

    public string SelFoodId { get; set; }

    public string SelQuantity { get; set; }

}

​

public class Program

{

    public static void Main()

    {

        var json = "[{\"SelFoodId\":\"2\",\"SelQuantity\":\"5\"},{\"SelFoodId\":\"7\",\"SelQuantity\":\"3\"},{\"SelFoodId\":\"9\",\"SelQuantity\":\"7\"}]";

        var list = JsonConvert.DeserializeObject<List<MyAwesomeSomething>>(json);

        foreach(var item in list)       

        {   

            Console.WriteLine(item.SelFoodId + " " + item.SelQuantity);

        }

    }

}