Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismResultView.cs
===================================================================
diff -u -r83ac738ad69ef53eba6ca4f647657e5b7f024b96 -r16559315c0a64fffd05827d249200c62e353231f
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismResultView.cs	(.../HeightStructuresFailureMechanismResultView.cs)	(revision 83ac738ad69ef53eba6ca4f647657e5b7f024b96)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismResultView.cs	(.../HeightStructuresFailureMechanismResultView.cs)	(revision 16559315c0a64fffd05827d249200c62e353231f)
@@ -55,12 +55,12 @@
                 UpdateDataGridViewDataSource,
                 cg => cg.Children.Concat<object>(cg.Children
                                                    .OfType<StructuresCalculation<HeightStructuresInput>>()
-                                                   .Select(c => c.InputParameters)).ToArray());
+                                                   .Select(c => c.InputParameters)));
             calculationOutputObserver = new RecursiveObserver<CalculationGroup, ICalculationOutput>(
                 UpdateDataGridViewDataSource,
                 cg => cg.Children.Concat<object>(cg.Children
                                                    .OfType<StructuresCalculation<HeightStructuresInput>>()
-                                                   .Select(c => c.Output)).ToArray());
+                                                   .Select(c => c.Output)));
             calculationGroupObserver = new RecursiveObserver<CalculationGroup, ICalculationBase>(
                 UpdateDataGridViewDataSource,
                 c => c.Children);