Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveHeightLocationsProperties.cs
===================================================================
diff -u -r9b83f33bbdd0e5bcd78e60342e5c780599c12c93 -r6b0cf3b2a278cb86ec4fc5af26f792afcf0cf3a4
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveHeightLocationsProperties.cs	(.../GrassCoverErosionOutwardsWaveHeightLocationsProperties.cs)	(revision 9b83f33bbdd0e5bcd78e60342e5c780599c12c93)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveHeightLocationsProperties.cs	(.../GrassCoverErosionOutwardsWaveHeightLocationsProperties.cs)	(revision 6b0cf3b2a278cb86ec4fc5af26f792afcf0cf3a4)
@@ -37,14 +37,27 @@
     /// </summary>
     public class GrassCoverErosionOutwardsWaveHeightLocationsProperties : HydraulicBoundaryLocationsProperties
     {
+        private readonly Func<HydraulicBoundaryLocation, HydraulicBoundaryLocationCalculation> getCalculationFunc;
+
         /// <summary>
         /// Creates a new instance of <see cref="GrassCoverErosionOutwardsWaveHeightLocationsProperties"/>.
         /// </summary>
         /// <param name="locations">The locations to show the properties for.</param>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="locations"/> is <c>null</c>.</exception>
-        public GrassCoverErosionOutwardsWaveHeightLocationsProperties(ObservableList<HydraulicBoundaryLocation> locations)
-            : base(locations) {}
+        /// <param name="getCalculationFunc"><see cref="Func{T,TResult}"/> for obtaining a <see cref="HydraulicBoundaryLocationCalculation"/>
+        /// based on <see cref="HydraulicBoundaryLocation"/>.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any input parameter is <c>null</c>.</exception>
+        public GrassCoverErosionOutwardsWaveHeightLocationsProperties(ObservableList<HydraulicBoundaryLocation> locations,
+                                                                      Func<HydraulicBoundaryLocation, HydraulicBoundaryLocationCalculation> getCalculationFunc)
+            : base(locations)
+        {
+            if (getCalculationFunc == null)
+            {
+                throw new ArgumentNullException(nameof(getCalculationFunc));
+            }
 
+            this.getCalculationFunc = getCalculationFunc;
+        }
+
         [TypeConverter(typeof(ExpandableArrayConverter))]
         [ResourcesCategory(typeof(Resources), nameof(Resources.Categories_General))]
         [ResourcesDisplayName(typeof(Resources), nameof(Resources.HydraulicBoundaryDatabase_Locations_DisplayName))]
@@ -53,7 +66,7 @@
         {
             get
             {
-                return data.Select(loc => new GrassCoverErosionOutwardsWaveHeightLocationProperties(loc, loc.WaveHeightCalculation)).ToArray();
+                return data.Select(loc => new GrassCoverErosionOutwardsWaveHeightLocationProperties(loc, getCalculationFunc(loc))).ToArray();
             }
         }
     }