From 96e0f13f2ab51d8b4b641eaa8d7d41aa5108d2d7 Mon Sep 17 00:00:00 2001
From: KozlovPS <kozlov_ps@Pmail.ru>
Date: Mon, 8 Jun 2026 10:49:58 +0300
Subject: [PATCH 1/2] =?UTF-8?q?RevitRoundingOfAreas:=20=D0=98=D1=81=D0=BF?=
 =?UTF-8?q?=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5=20=D0=BE=D1=88?=
 =?UTF-8?q?=D0=B8=D0=B1=D0=BA=D0=B8=20=D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B8=D1=8F=20=D0=BF=D0=B0=D1=80=D0=B0=D0=BC=D0=B5=D1=82?=
 =?UTF-8?q?=D1=80=D0=BE=D0=B2=20=D0=B4=D0=BB=D1=8F=20=D0=B7=D0=B0=D0=BF?=
 =?UTF-8?q?=D0=B8=D1=81=D0=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../ViewModels/MainViewModel.cs                  | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs b/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
index 12c9c8d05..1a80fe82f 100644
--- a/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
+++ b/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
@@ -133,15 +133,17 @@ private IEnumerable<ParamViewModel> GetSourceParamViewModels() {
 
     // Метод получения коллекции ParamViewModel для TargetParams
     private IEnumerable<ParamViewModel> GetTargetParamViewModels() {
+        var spatialElements = _revitRepository.GetAllSpatialElements().ToList();
+
         return _paramService.AllRevitParams
             .Where(revitParam => {
-                var spatialElements = _revitRepository.GetAllSpatialElements();
-                var randomSpatialElement = spatialElements.FirstOrDefault();
-                if(randomSpatialElement is null) {
-                    return false;
-                }
-                var param = revitParam.GetParam(randomSpatialElement);
-                return !param.IsReadOnly;
+                if (!spatialElements.Any())
+                    return true;
+
+                return spatialElements.All(spatialElement => {
+                    var param = revitParam.GetParam(spatialElement);
+                    return param != null && !param.IsReadOnly;
+                });
             })
             .Select(param => new ParamViewModel {
                 Name = param.Name,

From e992822f556017cbf540da7e3f62601e8a1f368d Mon Sep 17 00:00:00 2001
From: KozlovPS <kozlov_ps@Pmail.ru>
Date: Tue, 9 Jun 2026 12:39:49 +0300
Subject: [PATCH 2/2] =?UTF-8?q?RevitRoundingOfAreas:=20=D0=98=D1=81=D0=BF?=
 =?UTF-8?q?=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=20=D0=BC=D0=B5=D1=82=D0=BE?=
 =?UTF-8?q?=D0=B4=20=D0=B1=D0=B5=D0=B7=D0=BE=D0=BF=D0=B0=D1=81=D0=BD=D0=BE?=
 =?UTF-8?q?=D0=B3=D0=BE=20=D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8?=
 =?UTF-8?q?=D1=8F=20=D0=BF=D0=B0=D1=80=D0=B0=D0=BC=D0=B5=D1=82=D1=80=D0=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../ViewModels/MainViewModel.cs                | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs b/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
index 1a80fe82f..94d52db38 100644
--- a/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
+++ b/src/RevitRoundingOfAreas/ViewModels/MainViewModel.cs
@@ -6,6 +6,7 @@
 
 using Autodesk.Revit.DB;
 
+using dosymep.Bim4Everyone;
 using dosymep.Revit;
 using dosymep.SimpleServices;
 using dosymep.WPF.Commands;
@@ -140,16 +141,25 @@ private IEnumerable<ParamViewModel> GetTargetParamViewModels() {
                 if (!spatialElements.Any())
                     return true;
 
-                return spatialElements.All(spatialElement => {
-                    var param = revitParam.GetParam(spatialElement);
-                    return param != null && !param.IsReadOnly;
-                });
+                return spatialElements.All(spatialElement => 
+                    TryGetParam(revitParam, spatialElement, out var param) && !param.IsReadOnly);
             })
             .Select(param => new ParamViewModel {
                 Name = param.Name,
                 RevitParam = param
             });
     }
+    
+    // Метод получения параметра по RevitParam и Element
+    private static bool TryGetParam(RevitParam revitParam, Element element, out Parameter param) {
+        try {
+            param = revitParam.GetParam(element);
+            return param != null;
+        } catch {
+            param = null;
+            return false;
+        }
+    }
 
     // Метод получения коллекции PhaseViewModel для Phases
     private IEnumerable<PhaseViewModel> GetPhaseViewModels() {