LawFirm/LawFirmFileImplement/Implements/OrderStorage.cs

@@ -86,10 +86,13 @@ namespace LawFirmFileImplement.Implements
         private OrderViewModel GetViewModel(Order order)
         {
             var viewModel = order.GetViewModel;
-            var document = source.Documents.FirstOrDefault(x => x.Id == order.DocumentId);
+            foreach (var document in source.Documents)
-            if (document != null)
+            {
+                if (document.Id == order.DocumentId)
                 {
                     viewModel.DocumentName = document.DocumentName;
+                    break;
+                }
             }
             return viewModel;
         }