Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismResultView.cs
===================================================================
diff -u -r650fc7b43cb6729baee51d079f0377df8d7a3de9 -rb6d6acf62adcb4b23c4c5f6724fbd0091585bbb3
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismResultView.cs	(.../MacroStabilityInwardsFailureMechanismResultView.cs)	(revision 650fc7b43cb6729baee51d079f0377df8d7a3de9)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsFailureMechanismResultView.cs	(.../MacroStabilityInwardsFailureMechanismResultView.cs)	(revision b6d6acf62adcb4b23c4c5f6724fbd0091585bbb3)
@@ -47,8 +47,8 @@
         /// </summary>
         public MacroStabilityInwardsFailureMechanismResultView()
         {
-            DataGridViewControl.AddCellFormattingHandler(ShowAssessmentLayerTwoAErrors);
-            DataGridViewControl.AddCellFormattingHandler(DisableIrrelevantFieldsFormatting);
+            DataGridViewControl.CellFormatting += ShowAssessmentLayerTwoAErrors;
+            DataGridViewControl.CellFormatting += DisableIrrelevantFieldsFormatting;
 
             // The concat is needed to observe the input of calculations in child groups.
             calculationInputObserver = new RecursiveObserver<CalculationGroup, ICalculationInput>(
@@ -83,8 +83,8 @@
 
         protected override void Dispose(bool disposing)
         {
-            DataGridViewControl.RemoveCellFormattingHandler(ShowAssessmentLayerTwoAErrors);
-            DataGridViewControl.RemoveCellFormattingHandler(DisableIrrelevantFieldsFormatting);
+            DataGridViewControl.CellFormatting -= ShowAssessmentLayerTwoAErrors;
+            DataGridViewControl.CellFormatting -= DisableIrrelevantFieldsFormatting;
 
             calculationInputObserver.Dispose();
             calculationOutputObserver.Dispose();