Index: Riskeer/Common/src/Riskeer.Common.Forms/Views/FailureMechanismResultView.cs
===================================================================
diff -u -r4aacf6e6a26c58c87916eff2025de429150669d1 -r74407a8a8acd86ad005b3d9515251193f3cf26af
--- Riskeer/Common/src/Riskeer.Common.Forms/Views/FailureMechanismResultView.cs	(.../FailureMechanismResultView.cs)	(revision 4aacf6e6a26c58c87916eff2025de429150669d1)
+++ Riskeer/Common/src/Riskeer.Common.Forms/Views/FailureMechanismResultView.cs	(.../FailureMechanismResultView.cs)	(revision 74407a8a8acd86ad005b3d9515251193f3cf26af)
@@ -75,7 +75,7 @@
             FailureMechanism = failureMechanism;
             this.failureMechanismSectionResults = failureMechanismSectionResults;
 
-            failureMechanismObserver = new Observer(UpdateSectionResultRows)
+            failureMechanismObserver = new Observer(UpdateView)
             {
                 Observable = failureMechanism
             };
Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/FailureMechanismResultViewTest.cs
===================================================================
diff -u -r4aacf6e6a26c58c87916eff2025de429150669d1 -r74407a8a8acd86ad005b3d9515251193f3cf26af
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/FailureMechanismResultViewTest.cs	(.../FailureMechanismResultViewTest.cs)	(revision 4aacf6e6a26c58c87916eff2025de429150669d1)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/FailureMechanismResultViewTest.cs	(.../FailureMechanismResultViewTest.cs)	(revision 74407a8a8acd86ad005b3d9515251193f3cf26af)
@@ -138,7 +138,7 @@
         }
 
         [Test]
-        public void GivenFailureMechanismResultView_WhenFailureMechanismNotifiesObservers_ThenDataGridViewInvalidated()
+        public void GivenFailureMechanismResultView_WhenFailureMechanismNotifiesObservers_ThenDataGridViewUpdated()
         {
             // Given
             TestFailureMechanismSectionResult sectionResult = FailureMechanismSectionResultTestFactory.CreateFailureMechanismSectionResult();
@@ -150,18 +150,18 @@
 
             using (TestFailureMechanismResultView view = ShowFailureMechanismResultsView(sectionResults))
             {
-                var invalidated = false;
+                var rowsChanged = false;
                 DataGridView dataGridView = GetDataGridView();
-                dataGridView.Invalidated += (sender, args) => invalidated = true;
+                dataGridView.Rows.CollectionChanged += (sender, args) => rowsChanged = true;
 
                 // Precondition
-                Assert.IsFalse(invalidated);
+                Assert.IsFalse(rowsChanged);
 
                 // When
                 view.FailureMechanism.NotifyObservers();
 
                 // Then
-                Assert.IsTrue(invalidated);
+                Assert.IsTrue(rowsChanged);
             }
         }
 
Index: Riskeer/Piping/test/Riskeer.Piping.Forms.Test/Views/PipingFailureMechanismResultViewTest.cs
===================================================================
diff -u -rb24a89c790d199d7f70133aed2f47784baa201ca -r74407a8a8acd86ad005b3d9515251193f3cf26af
--- Riskeer/Piping/test/Riskeer.Piping.Forms.Test/Views/PipingFailureMechanismResultViewTest.cs	(.../PipingFailureMechanismResultViewTest.cs)	(revision b24a89c790d199d7f70133aed2f47784baa201ca)
+++ Riskeer/Piping/test/Riskeer.Piping.Forms.Test/Views/PipingFailureMechanismResultViewTest.cs	(.../PipingFailureMechanismResultViewTest.cs)	(revision 74407a8a8acd86ad005b3d9515251193f3cf26af)
@@ -197,6 +197,9 @@
                 DataGridView dataGridView = GetDataGridView();
                 dataGridView.Rows.CollectionChanged += (sender, args) => rowsChanged = true;
 
+                // Precondition
+                Assert.IsFalse(rowsChanged);
+                
                 // When
                 calculationScenario.NotifyObservers();
 
@@ -224,6 +227,9 @@
                 DataGridView dataGridView = GetDataGridView();
                 dataGridView.Rows.CollectionChanged += (sender, args) => rowsChanged = true;
 
+                // Precondition
+                Assert.IsFalse(rowsChanged);
+                
                 // When
                 calculationScenario.InputParameters.NotifyObservers();