Index: Core/Common/src/Core.Common.Controls/Core.Common.Controls.csproj
===================================================================
diff -u -r07bb209b7475f9a60cea565c982c47e0562f6daf -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Core/Common/src/Core.Common.Controls/Core.Common.Controls.csproj	(.../Core.Common.Controls.csproj)	(revision 07bb209b7475f9a60cea565c982c47e0562f6daf)
+++ Core/Common/src/Core.Common.Controls/Core.Common.Controls.csproj	(.../Core.Common.Controls.csproj)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -21,6 +21,7 @@
     <Compile Include="DataGrid\DataGridViewColorCell.cs" />
     <Compile Include="DataGrid\DataGridViewColorColumn.cs" />
     <Compile Include="DataGrid\DataGridViewColumnStateDefinition.cs" />
+    <Compile Include="DataGrid\DataGridViewColumnStateDefinitionFactory.cs" />
     <Compile Include="DataGrid\DataGridViewControlCellFormatExtensions.cs" />
     <Compile Include="DataGrid\EnhancedDataGridView.cs">
       <SubType>Component</SubType>
Index: Core/Common/src/Core.Common.Controls/DataGrid/DataGridViewColumnStateDefinitionFactory.cs
===================================================================
diff -u
--- Core/Common/src/Core.Common.Controls/DataGrid/DataGridViewColumnStateDefinitionFactory.cs	(revision 0)
+++ Core/Common/src/Core.Common.Controls/DataGrid/DataGridViewColumnStateDefinitionFactory.cs	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -0,0 +1,41 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Core.Common.Controls.DataGrid
+{
+    /// <summary>
+    /// Factory for creating <see cref="DataGridViewColumnStateDefinition"/> instances.
+    /// </summary>
+    public static class DataGridViewColumnStateDefinitionFactory
+    {
+        /// <summary>
+        /// Creates a new read only <see cref="DataGridViewColumnStateDefinition"/>
+        /// </summary>
+        /// <returns>A <see cref="DataGridViewColumnStateDefinition"/>.</returns>
+        public static DataGridViewColumnStateDefinition CreateReadOnlyColumnStateDefinition()
+        {
+            return new DataGridViewColumnStateDefinition
+            {
+                ReadOnly = true
+            };
+        }
+    }
+}
\ No newline at end of file
Index: Core/Common/test/Core.Common.Controls.Test/Core.Common.Controls.Test.csproj
===================================================================
diff -u -r07bb209b7475f9a60cea565c982c47e0562f6daf -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Core/Common/test/Core.Common.Controls.Test/Core.Common.Controls.Test.csproj	(.../Core.Common.Controls.Test.csproj)	(revision 07bb209b7475f9a60cea565c982c47e0562f6daf)
+++ Core/Common/test/Core.Common.Controls.Test/Core.Common.Controls.Test.csproj	(.../Core.Common.Controls.Test.csproj)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -27,6 +27,7 @@
     <Compile Include="DataGrid\CellStyleTest.cs" />
     <Compile Include="DataGrid\DataGridViewColorCellTest.cs" />
     <Compile Include="DataGrid\DataGridViewColorColumnTest.cs" />
+    <Compile Include="DataGrid\DataGridViewColumnStateDefinitionFactoryTest.cs" />
     <Compile Include="DataGrid\DataGridViewColumnStateDefinitionTest.cs" />
     <Compile Include="DataGrid\DataGridViewComboBoxItemWrapperTest.cs" />
     <Compile Include="DataGrid\DataGridViewControlCellFormatExtensionsTest.cs" />
Index: Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewColumnStateDefinitionFactoryTest.cs
===================================================================
diff -u
--- Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewColumnStateDefinitionFactoryTest.cs	(revision 0)
+++ Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewColumnStateDefinitionFactoryTest.cs	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -0,0 +1,40 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using Core.Common.Controls.DataGrid;
+using NUnit.Framework;
+
+namespace Core.Common.Controls.Test.DataGrid
+{
+    [TestFixture]
+    public class DataGridViewColumnStateDefinitionFactoryTest
+    {
+        [Test]
+        public void CreateReadOnlyColumnStateDefinition_Always_ReturnColumnStateDefinition()
+        {
+            // Call
+            DataGridViewColumnStateDefinition columnStateDefinition = DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition();
+
+            // Assert
+            Assert.IsTrue(columnStateDefinition.ReadOnly);
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -317,26 +317,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Forms/Views/DuneErosionSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Forms/Views/DuneErosionSectionResultRow.cs	(.../DuneErosionSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Forms/Views/DuneErosionSectionResultRow.cs	(.../DuneErosionSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -317,22 +317,10 @@
             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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionInwardsFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionInwardsFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -318,26 +318,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/Views/GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs	(.../GrassCoverErosionOutwardsFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -317,22 +317,10 @@
             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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismSectionResultRow.cs	(.../HeightStructuresFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismSectionResultRow.cs	(.../HeightStructuresFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -316,26 +316,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/CombinedFailureMechanismSectionAssemblyResultRow.cs
===================================================================
diff -u -rb4ef5ef0339a13b0996d567c6d4347c4441a62cc -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/CombinedFailureMechanismSectionAssemblyResultRow.cs	(.../CombinedFailureMechanismSectionAssemblyResultRow.cs)	(revision b4ef5ef0339a13b0996d567c6d4347c4441a62cc)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/CombinedFailureMechanismSectionAssemblyResultRow.cs	(.../CombinedFailureMechanismSectionAssemblyResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -316,35 +316,27 @@
 
         private void CreateColumnStateDefinitions()
         {
-            ColumnStateDefinitions.Add(totalResultIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(pipingIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(grassCoverErosionInwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(macroStabilityInwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(macroStabilityOutwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(microstabililityIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(stabilityStoneCoverIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(waveImpactAsphaltCoverIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(waterPressureAsphaltCoverIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(grassCoverErosionOutwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(grassCoverSlipOffOutwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(grassCoverSlipOffInwardsIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(heightStructuresIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(closingStructuresIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(pipingStructureIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(stabilityPointStructuresIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(strengthStabilityLengthwiseConstructionIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(duneErosionIndex, CreateDefaultDataGridViewColumnStateDefinition());
-            ColumnStateDefinitions.Add(technicalInnovationIndex, CreateDefaultDataGridViewColumnStateDefinition());
+            ColumnStateDefinitions.Add(totalResultIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(pipingIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(grassCoverErosionInwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(macroStabilityInwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(macroStabilityOutwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(microstabililityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(stabilityStoneCoverIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(waveImpactAsphaltCoverIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(waterPressureAsphaltCoverIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(grassCoverErosionOutwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(grassCoverSlipOffOutwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(grassCoverSlipOffInwardsIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(heightStructuresIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(closingStructuresIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(pipingStructureIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(stabilityPointStructuresIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(strengthStabilityLengthwiseConstructionIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(duneErosionIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(technicalInnovationIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
         }
 
-        private static DataGridViewColumnStateDefinition CreateDefaultDataGridViewColumnStateDefinition()
-        {
-            return new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            };
-        }
-
         private void SetColumnStateDefinitionColors()
         {
             ColumnStateDefinitions[totalResultIndex].Style = CreateCellStyle(combinedFailureMechanismSectionAssemblyResult.TotalResult);
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismAssemblyResultRowBase.cs
===================================================================
diff -u -r3356463e60f4ae18255055ae3aa6e5d3b5cbbe01 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismAssemblyResultRowBase.cs	(.../FailureMechanismAssemblyResultRowBase.cs)	(revision 3356463e60f4ae18255055ae3aa6e5d3b5cbbe01)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismAssemblyResultRowBase.cs	(.../FailureMechanismAssemblyResultRowBase.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -136,10 +136,7 @@
 
         private void CreateColumnStateDefinitions()
         {
-            ColumnStateDefinitions.Add(categoryIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(categoryIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
         }
 
         private void ResetErrorTexts()
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffInwardsSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffInwardsSectionResultRow.cs	(.../GrassCoverSlipOffInwardsSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffInwardsSectionResultRow.cs	(.../GrassCoverSlipOffInwardsSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -229,22 +229,10 @@
             ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(detailedAssessmentResultIndex, 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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs	(.../GrassCoverSlipOffOutwardsSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs	(.../GrassCoverSlipOffOutwardsSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -229,22 +229,10 @@
             ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(detailedAssessmentResultIndex, 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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs	(.../MacroStabilityOutwardsSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MacroStabilityOutwardsSectionResultRow.cs	(.../MacroStabilityOutwardsSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -300,22 +300,10 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MicrostabilitySectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MicrostabilitySectionResultRow.cs	(.../MicrostabilitySectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/MicrostabilitySectionResultRow.cs	(.../MicrostabilitySectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -230,22 +230,10 @@
             ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(detailedAssessmentResultIndex, 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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/PipingStructureSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/PipingStructureSectionResultRow.cs	(.../PipingStructureSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/PipingStructureSectionResultRow.cs	(.../PipingStructureSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -229,22 +229,10 @@
             ColumnStateDefinitions.Add(simpleAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(detailedAssessmentResultIndex, 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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/StrengthStabilityLengthwiseConstructionSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/StrengthStabilityLengthwiseConstructionSectionResultRow.cs	(.../StrengthStabilityLengthwiseConstructionSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/StrengthStabilityLengthwiseConstructionSectionResultRow.cs	(.../StrengthStabilityLengthwiseConstructionSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -195,18 +195,9 @@
         {
             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());
         }
 
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());
         }
 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/WaterPressureAsphaltCoverSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/WaterPressureAsphaltCoverSectionResultRow.cs	(.../WaterPressureAsphaltCoverSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/WaterPressureAsphaltCoverSectionResultRow.cs	(.../WaterPressureAsphaltCoverSectionResultRow.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());
         }
 
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismSectionResultRow.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismSectionResultRow.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -358,26 +358,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingFailureMechanismSectionResultRow.cs	(.../PipingFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingFailureMechanismSectionResultRow.cs	(.../PipingFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -357,26 +357,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -319,26 +319,11 @@
             ColumnStateDefinitions.Add(detailedAssessmentProbabilityIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentResultIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(tailorMadeAssessmentProbabilityIndex, 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(combinedAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition
-            {
-                ReadOnly = true
-            });
+            ColumnStateDefinitions.Add(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyProbabilityIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyProbabilityIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/Views/StabilityStoneCoverSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/Views/StabilityStoneCoverSectionResultRow.cs	(.../StabilityStoneCoverSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/Views/StabilityStoneCoverSectionResultRow.cs	(.../StabilityStoneCoverSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -318,22 +318,10 @@
             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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }
 
Index: Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Forms/Views/WaveImpactAsphaltCoverFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r37d015e59a004f7deb5f1a9657016bd9c13c6539 -r4613f112c78c8a1ea1c69d07a0e08e5a69b3689e
--- Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Forms/Views/WaveImpactAsphaltCoverFailureMechanismSectionResultRow.cs	(.../WaveImpactAsphaltCoverFailureMechanismSectionResultRow.cs)	(revision 37d015e59a004f7deb5f1a9657016bd9c13c6539)
+++ Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Forms/Views/WaveImpactAsphaltCoverFailureMechanismSectionResultRow.cs	(.../WaveImpactAsphaltCoverFailureMechanismSectionResultRow.cs)	(revision 4613f112c78c8a1ea1c69d07a0e08e5a69b3689e)
@@ -317,22 +317,10 @@
             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(simpleAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(detailedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(tailorMadeAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
+            ColumnStateDefinitions.Add(combinedAssemblyCategoryGroupIndex, DataGridViewColumnStateDefinitionFactory.CreateReadOnlyColumnStateDefinition());
             ColumnStateDefinitions.Add(manualAssemblyCategoryGroupIndex, new DataGridViewColumnStateDefinition());
         }