Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/PropertyClasses/StabilityStoneCoverWaveConditionsCalculationInputContextProperties.cs
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diff -u -r6c3a074511922fb175a1aa7f20168bbb6d63a688 -rb0b6b4fe952844ddc3e253e6f88a6cccc97dc71f
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/PropertyClasses/StabilityStoneCoverWaveConditionsCalculationInputContextProperties.cs	(.../StabilityStoneCoverWaveConditionsCalculationInputContextProperties.cs)	(revision 6c3a074511922fb175a1aa7f20168bbb6d63a688)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/PropertyClasses/StabilityStoneCoverWaveConditionsCalculationInputContextProperties.cs	(.../StabilityStoneCoverWaveConditionsCalculationInputContextProperties.cs)	(revision b0b6b4fe952844ddc3e253e6f88a6cccc97dc71f)
@@ -192,7 +192,7 @@
         }
 
         [PropertyOrder(waterLevelsPropertyIndex)]
-        [TypeConverter(typeof(ExpandableArrayConverter))]
+        [TypeConverter(typeof(ExpandableReadOnlyArrayConverter))]
         [ResourcesCategory(typeof(RingtoetsCommonFormsResources), "Categories_HydraulicData")]
         [ResourcesDisplayName(typeof(Resources), "StabilityStoneCoverWaveConditionsCalculationInput_WaterLevels_DisplayName")]
         [ResourcesDescription(typeof(Resources), "StabilityStoneCoverWaveConditionsCalculationInput_WaterLevels_Description")]