Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r97604c23ecbb32a091fa9978582378050f6a8b61 -ra6ebd668680c82a4b7822d979c7be3c3ad11ff7b
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs)	(revision 97604c23ecbb32a091fa9978582378050f6a8b61)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs)	(revision a6ebd668680c82a4b7822d979c7be3c3ad11ff7b)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using Core.Common.Controls.DataGrid;
 using Ringtoets.AssemblyTool.Data;
 using Ringtoets.AssemblyTool.Forms;
 using Ringtoets.Common.Data.Exceptions;
@@ -85,6 +86,8 @@
             combinedAssemblyCategoryGroupIndex = constructionProperties.CombinedAssemblyCategoryGroupIndex;
             manualAssemblyCategoryGroupIndex = constructionProperties.ManualAssemblyCategoryGroupIndex;
 
+            CreateColumnStateDefinitions();
+
             Update();
         }
 
@@ -302,6 +305,34 @@
             UpdateDerivedData();
         }
 
+        private void CreateColumnStateDefinitions()
+        {
+            ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssessmentResultForFactorizedSignalingNormIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssessmentResultForSignalingNormIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssessmentResultForMechanismSpecificLowerLimitNormIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssessmentResultForLowerLimitNormIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssessmentResultForFactorizedLowerLimitNormIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            });
+            ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
+        }
+
         private void UpdateDerivedData()
         {
             TryGetSimpleAssemblyCategoryGroup();