Фикс ошибочек

Confectionery/ConfectioneryFileImplement/DataFileSingleton.cs

@@ -29,14 +29,13 @@ namespace ConfectioneryFileImplement
        "Components", x => x.GetXElement);
         public void SavePastrys() => SaveData(Pastrys, PastryFileName,
        "Pastrys", x => x.GetXElement);
-        public void SaveOrders() { }
+        public void SaveOrders() => SaveData(Orders, OrderFileName,
+       "Orders", x => x.GetXElement);
         private DataFileSingleton()
         {
-            Components = LoadData(ComponentFileName, "Component", x =>
-           Component.Create(x)!)!;
-            Pastrys = LoadData(PastryFileName, "Pastry", x =>
-           Pastry.Create(x)!)!;
-            Orders = new List<Order>();
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Pastrys = LoadData(PastryFileName, "Pastry", x => Pastry.Create(x)!)!; 
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName,
        Func<XElement, T> selectFunction)

Confectionery/ConfectioneryFileImplement/Order.cs

@@ -4,9 +4,9 @@ using ConfectioneryContracts.BindingModels;
 using ConfectioneryContracts.ViewModels;
 using System.Xml.Linq;
 
-namespace ConfectioneryFileImplement
+namespace ConfectioneryFileImplement.Models
 {
-    public class Order
+    public class Order : IOrderModel
     {
         public int Id { get; private set; }
         public int PastryId { get; private set; }

Confectionery/ConfectioneryFileImplement/OrderStorage.cs

@@ -2,6 +2,7 @@
 using ConfectioneryContracts.SearchModels;
 using ConfectioneryContracts.StoragesContracts;
 using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -82,10 +83,10 @@ namespace ConfectioneryFileImplement.Implements
             {
                 return null;
             }
-            var pastry = source.Pastrys.FirstOrDefault(x => x.Id == model.PastryId);
-            if (pastry != null)
+            var pizza = source.Pastrys.FirstOrDefault(x => x.Id == model.PastryId);
+            if (pizza != null)
             {
-                model.PastryName = pastry.PastryName;
+                model.PastryName = pizza.PastryName;
             }
             return model;
         }

Confectionery/ConfectioneryFileImplement/Pastry.cs

@@ -17,19 +17,19 @@ namespace ConfectioneryFileImplement.Models
         public double Price { get; private set; }
         public Dictionary<int, int> Components { get; private set; } = new();
 
-        private Dictionary<int, (IComponentModel, int)>? _productComponents = null;
+        private Dictionary<int, (IComponentModel, int)>? _pastryComponents = null;
         public Dictionary<int, (IComponentModel, int)> PastryComponents
         {
             get
             {
-                if (_productComponents == null)
+                if (_pastryComponents == null)
                 {
                     var source = DataFileSingleton.GetInstance();
-                    _productComponents = Components.ToDictionary(x => x.Key, y =>
+                    _pastryComponents = Components.ToDictionary(x => x.Key, y =>
                     ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
                     y.Value));
                 }
-                return _productComponents;
+                return _pastryComponents;
             }
         }
         public static Pastry? Create(PastryBindingModel model)
@@ -75,7 +75,7 @@ Convert.ToInt32(x.Element("Value")?.Value))
             Price = model.Price;
             Components = model.PastryComponents.ToDictionary(x => x.Key, x =>
            x.Value.Item2);
-            _productComponents = null;
+            _pastryComponents = null;
         }
         public PastryViewModel GetViewModel => new()
         {

Confectionery/ConfectioneryView/FormCreateOrder.cs

@@ -92,9 +92,9 @@ namespace ConfectioneryView
                 try
                 {
                     int id = Convert.ToInt32(comboBoxPastry.SelectedValue);
-                    var product = _logicP.ReadElement(new PastrySearchModel { Id = id });
+                    var pastry = _logicP.ReadElement(new PastrySearchModel { Id = id });
                     int count = Convert.ToInt32(textBoxCount.Text);
-                    textBoxSum.Text = Math.Round(count * (product?.Price ?? 0), 2).ToString();
+                    textBoxSum.Text = Math.Round(count * (pastry?.Price ?? 0), 2).ToString();
                     _logger.LogInformation("Расчет суммы заказа");
                 }
                 catch (Exception ex)