Правки для корректной работы.

BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/ManufactureStorage.cs

@@ -59,7 +59,7 @@ namespace BlacksmithWorkshopFileImplement.Implements
             }
 
             source.Manufactures.Add(newManufacture);
-            source.SaveWorkPieces();
+            source.SaveManufactures();
 
             return newManufacture.GetViewModel;
         }
@@ -74,7 +74,7 @@ namespace BlacksmithWorkshopFileImplement.Implements
             }
 
             manufacture.Update(model);
-            source.SaveWorkPieces();
+            source.SaveManufactures();
 
             return manufacture.GetViewModel;
         }
@@ -86,7 +86,7 @@ namespace BlacksmithWorkshopFileImplement.Implements
             if (element != null)
             {
                 source.Manufactures.Remove(element);
-                source.SaveWorkPieces();
+                source.SaveManufactures();
 
                 return element.GetViewModel;
             }

BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/OrderStorage.cs

@@ -23,7 +23,7 @@ namespace BlacksmithWorkshopFileImplement.Implements
 
         public List<OrderViewModel> GetFullList()
         {
-            return source.Orders.Select(x => x.GetViewModel).ToList();
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
         }
 
         public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
@@ -33,7 +33,7 @@ namespace BlacksmithWorkshopFileImplement.Implements
                 return new();
             }
 
-            return source.Orders.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
         }
 
         public OrderViewModel? GetElement(OrderSearchModel model)
@@ -46,6 +46,24 @@ namespace BlacksmithWorkshopFileImplement.Implements
             return source.Orders.FirstOrDefault(x =>(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
         }
 
+        //для загрузки названий изделия в заказе
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+
+            foreach(var manufacture in source.Manufactures)
+            {
+                if(manufacture.Id == order.ManufactureId)
+                {
+                    viewModel.ManufactureName = manufacture.ManufactureName;
+
+                    break;
+                }
+            }
+
+            return viewModel;
+        }
+
         public OrderViewModel? Insert(OrderBindingModel model)
         {
             model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
@@ -58,9 +76,9 @@ namespace BlacksmithWorkshopFileImplement.Implements
             }
 
             source.Orders.Add(newOrder);
-            source.SaveWorkPieces();
+            source.SaveOrders();
 
-            return newOrder.GetViewModel;
+            return GetViewModel(newOrder);
         }
 
         public OrderViewModel? Update(OrderBindingModel model)
@@ -73,9 +91,9 @@ namespace BlacksmithWorkshopFileImplement.Implements
             }
 
             order.Update(model);
-            source.SaveWorkPieces();
+            source.SaveOrders();
 
-            return order.GetViewModel;
+            return GetViewModel(order);
         }
 
         public OrderViewModel? Delete(OrderBindingModel model)
@@ -85,9 +103,9 @@ namespace BlacksmithWorkshopFileImplement.Implements
             if (element != null)
             {
                 source.Orders.Remove(element);
-                source.SaveWorkPieces();
+                source.SaveOrders();
 
-                return element.GetViewModel;
+                return GetViewModel(element);
             }
 
             return null;

BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Manufacture.cs

@@ -68,7 +68,7 @@ namespace BlacksmithWorkshopFileImplement.Models
                 Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                 ManufactureName = element.Element("ManufactureName")!.Value,
                 Price = Convert.ToDouble(element.Element("Price")!.Value),
-                WorkPieces = element.Element("ManufactureWorkPieces")!.Elements("ManufactureComponent").ToDictionary(
+                WorkPieces = element.Element("ManufactureWorkPieces")!.Elements("ManufactureWorkPieces").ToDictionary(
                     x => Convert.ToInt32(x.Element("Key")?.Value), 
                     x => Convert.ToInt32(x.Element("Value")?.Value))
             };
@@ -100,7 +100,7 @@ namespace BlacksmithWorkshopFileImplement.Models
             new XElement("ManufactureName", ManufactureName), 
             new XElement("Price", Price.ToString()), 
             new XElement("ManufactureWorkPieces", WorkPieces.Select(
-                x => new XElement("ManufactureComponent", 
+                x => new XElement("ManufactureWorkPieces", 
                     new XElement("Key", x.Key), 
                     new XElement("Value", x.Value))
                 ).ToArray()));

BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Order.cs

@@ -95,6 +95,7 @@ namespace BlacksmithWorkshopFileImplement.Models
             new XAttribute("Id", Id),
             new XElement("ManufactureId", ManufactureId.ToString()),
             new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
             new XElement("Status", Status.ToString()),
             new XElement("DateCreate", DateCreate.ToString()),
             new XElement("DateImplement", DateImplement.ToString()));