Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs
===================================================================
diff -u -r26f527fb809a2325c8f883ece9da01a8f8040eb3 -r0c5fdf3803fc373c20aa5e12fd180247797e15e2
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs	(.../PipingCalculationsView.cs)	(revision 26f527fb809a2325c8f883ece9da01a8f8040eb3)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs	(.../PipingCalculationsView.cs)	(revision 0c5fdf3803fc373c20aa5e12fd180247797e15e2)
@@ -341,7 +341,7 @@
             UpdateSelectableHydraulicBoundaryLocationsColumn();
         }
 
-        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>> GetPrefillStochasticSoilModelsDataSource(
+        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>> GetStochasticSoilModelsDataSource(
             IEnumerable<PipingStochasticSoilModel> stochasticSoilModels)
         {
             yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>(null);
@@ -352,21 +352,7 @@
             }
         }
 
-        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>> GetStochasticSoilModelsDataSource(
-            IEnumerable<PipingStochasticSoilModel> stochasticSoilModels)
-        {
-            PipingStochasticSoilModel[] stochasticSoilModelsArray = stochasticSoilModels.ToArray();
-            if (stochasticSoilModelsArray.Length != 1)
-            {
-                yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>(null);
-            }
-            foreach (PipingStochasticSoilModel stochasticSoilModel in stochasticSoilModelsArray)
-            {
-                yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilModel>(stochasticSoilModel);
-            }
-        }
-
-        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>> GetPrefillSoilProfilesDataSource(
+        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>> GetSoilProfilesDataSource(
             IEnumerable<PipingStochasticSoilProfile> stochasticSoilProfiles)
         {
             yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>(null);
@@ -377,20 +363,6 @@
             }
         }
 
-        private static IEnumerable<DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>> GetSoilProfilesDataSource(
-            IEnumerable<PipingStochasticSoilProfile> stochasticSoilProfiles)
-        {
-            PipingStochasticSoilProfile[] stochasticSoilProfilesArray = stochasticSoilProfiles.ToArray();
-            if (stochasticSoilProfilesArray.Length != 1)
-            {
-                yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>(null);
-            }
-            foreach (PipingStochasticSoilProfile stochasticSoilProfile in stochasticSoilProfilesArray)
-            {
-                yield return new DataGridViewComboBoxItemWrapper<PipingStochasticSoilProfile>(stochasticSoilProfile);
-            }
-        }
-
         private static List<DataGridViewComboBoxItemWrapper<SelectableHydraulicBoundaryLocation>> GetSelectableHydraulicBoundaryLocationsDataSource(
             IEnumerable<SelectableHydraulicBoundaryLocation> selectableHydraulicBoundaryLocations = null)
         {
@@ -535,12 +507,12 @@
             using (new SuspendDataGridViewColumnResizes(stochasticSoilModelColumn))
             {
                 PipingStochasticSoilModelCollection stochasticSoilModels = pipingFailureMechanism.StochasticSoilModels;
-                SetItemsOnObjectCollection(stochasticSoilModelColumn.Items, GetPrefillStochasticSoilModelsDataSource(stochasticSoilModels).ToArray());
+                SetItemsOnObjectCollection(stochasticSoilModelColumn.Items, GetStochasticSoilModelsDataSource(stochasticSoilModels).ToArray());
             }
             using (new SuspendDataGridViewColumnResizes(stochasticSoilProfileColumn))
             {
                 PipingStochasticSoilProfile[] pipingSoilProfiles = GetPipingStochasticSoilProfilesFromStochasticSoilModels();
-                SetItemsOnObjectCollection(stochasticSoilProfileColumn.Items, GetPrefillSoilProfilesDataSource(pipingSoilProfiles).ToArray());
+                SetItemsOnObjectCollection(stochasticSoilProfileColumn.Items, GetSoilProfilesDataSource(pipingSoilProfiles).ToArray());
             }
             using (new SuspendDataGridViewColumnResizes(selectableHydraulicBoundaryLocationColumn))
             {