Добавил выборку в получение списка заказов

IceCreamShop/IceCreamShopDatabaseImplement/Implements/OrderStorage.cs

@@ -53,6 +53,16 @@ namespace IceCreamShopDatabaseImplement.Implements
                     .Select(x => x.GetViewModel)
                     .ToList();
             }
+            else if (model.ImplementerId.HasValue && model.Status != null)
+            {
+                return context.Orders
+                    .Include(x => x.IceCream)
+                    .Include(x => x.Client)
+                    .Include(x => x.Implementer)
+                    .Where(x => x.ImplementerId == model.ImplementerId && x.Status.Equals(model.Status))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
             else if (model.ImplementerId.HasValue)
             {
                 return context.Orders