PIbd-21_Sagirov_M.M._Shipyard/Shipyard/ShipyardListImplement/DataListSingleton.cs

using ShipyardListImplement.Models;

namespace ShipyardListImplement
{
    public class DataListSingleton
    {
        private static DataListSingleton? _instance;
        public List<Detail> Details { get; set; }
        public List<Order> Orders { get; set; }
        public List<Ship> Ships { get; set; }
		public List<Shop> Shops { get; set; }
		private DataListSingleton()
		{
			Details = new List<Detail>();
			Orders = new List<Order>();
			Ships = new List<Ship>();
			Shops = new List<Shop>();
		}
		public static DataListSingleton GetInstance()
        {
            if (_instance == null)
            {
                _instance = new DataListSingleton();
            }
            return _instance;
        }
    }
}