Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/ScenariosViewTest.cs
===================================================================
diff -u -r9f6481bc31f2992b06a7ce74c7f10ca09a31b625 -rfb8bbe3c5b426c639b09090b71a8c5183a13ecf7
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/ScenariosViewTest.cs	(.../ScenariosViewTest.cs)	(revision 9f6481bc31f2992b06a7ce74c7f10ca09a31b625)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/Views/ScenariosViewTest.cs	(.../ScenariosViewTest.cs)	(revision fb8bbe3c5b426c639b09090b71a8c5183a13ecf7)
@@ -23,11 +23,13 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Windows.Forms;
+using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Base.Geometry;
 using Core.Common.Controls.Views;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
+using Rhino.Mocks;
 using Riskeer.Common.Data.Calculation;
 using Riskeer.Common.Data.FailureMechanism;
 using Riskeer.Common.Data.TestUtil;
@@ -206,6 +208,32 @@
         }
 
         [Test]
+        [TestCase(isRelevantColumnIndex, true)]
+        [TestCase(contributionColumnIndex, 30.0)]
+        public void ScenariosView_EditingPropertyViaDataGridView_ObserversCorrectlyNotified(int cellIndex, object newValue)
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var calculationObserver = mocks.StrictMock<IObserver>();
+            calculationObserver.Expect(o => o.UpdateObserver());
+            mocks.ReplayAll();
+
+            var calculationGroup = new CalculationGroup();
+            ShowFullyConfiguredScenariosView(calculationGroup, new TestFailureMechanism());
+
+            ICalculation calculation = calculationGroup.GetCalculations().First();
+            calculation.Attach(calculationObserver);
+
+            var dataGridView = (DataGridView) new ControlTester("dataGridView").TheObject;
+
+            // Call
+            dataGridView.Rows[0].Cells[cellIndex].Value = newValue is double value ? (RoundedDouble) value : newValue;
+
+            // Assert
+            mocks.VerifyAll();
+        }
+
+        [Test]
         public void GivenScenariosView_WhenSelectingDifferentItemInSectionsListBox_ThenDataGridViewUpdated()
         {
             // Given