SecuritySystem/SecuritySystemFileImplement/DataFileSingleton.cs

@@ -22,12 +22,12 @@ namespace SecuritySystemFileImplement
         }
         public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
         public void SaveSecures() => SaveData(Secures, SecureFileName, "Secures", 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)!)!;
             Secures = LoadData(SecureFileName, "Secure", x => Secure.Create(x)!)!;
-            Orders = new List<Order>();
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName,
        Func<XElement, T> selectFunction)

SecuritySystem/SecuritySystemFileImplement/Implements/SecureStorage.cs

@@ -2,6 +2,7 @@
 using SecuritySystemContracts.SearchModels;
 using SecuritySystemContracts.StoragesContracts;
 using SecuritySystemContracts.ViewModels;
+using SecuritySystemFileImplement.Models;
 
 namespace SecuritySystemFileImplement.Implements
 {

SecuritySystem/SecuritySystemView/Program.cs

@@ -4,7 +4,7 @@ using NLog.Extensions.Logging;
 using SecuritySystemBusinessLogic.BusinessLogics;
 using SecuritySystemContracts.BusinessLogicsContracts;
 using SecuritySystemContracts.StoragesContracts;
-using SecuritySystemListImplement.Implements;
+using SecuritySystemFileImplement.Implements;
 
 namespace SecuritySystemView
 {