Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/TechnicalInnovationSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/TechnicalInnovationSectionResultRow.cs	(.../TechnicalInnovationSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/TechnicalInnovationSectionResultRow.cs	(.../TechnicalInnovationSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -194,18 +194,9 @@
         {
             ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
-            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
-            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }