ISEbd-21.Gordeev.I.V.SushiBar.Basic/SushiBar/SushiBarListImplement/DataListSingleton.cs

using SushiBarListImplement.Models;

namespace SushiBarListImplement
{
    public class DataListSingleton
    {
        private static DataListSingleton? _instance;
        public List<Ingredient> Ingredients { get; set; }
        public List<Order> Orders { get; set; }
        public List<Sushi> ListSushi { get; set; }
        private DataListSingleton()
        {
            Ingredients = new List<Ingredient>();
            Orders = new List<Order>();
            ListSushi = new List<Sushi>();
        }
        public static DataListSingleton GetInstance()
        {
            if (_instance == null)
            {
                _instance = new DataListSingleton();
            }
            return _instance;
        }
    }
}