Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs
===================================================================
diff -u -rf65694c90375dbbed8fea4db8e7d0873cc659669 -rbf1278c3fe48ed78df58e0e0c6ee59ae710942e9
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs	(.../PipingCalculationsView.cs)	(revision f65694c90375dbbed8fea4db8e7d0873cc659669)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationsView.cs	(.../PipingCalculationsView.cs)	(revision bf1278c3fe48ed78df58e0e0c6ee59ae710942e9)
@@ -41,6 +41,8 @@
     {
         private readonly Observer pipingSoilProfilesObserver;
         private readonly Observer assessmentSectionObserver;
+        private readonly RecursiveObserver<PipingCalculationGroup, PipingInput> pipingInputObserver;
+        private readonly RecursiveObserver<PipingCalculationGroup, PipingCalculation> pipingCalculationObserver;
         private readonly RecursiveObserver<PipingCalculationGroup, PipingCalculationGroup> pipingCalculationGroupObserver;
         private AssessmentSectionBase assessmentSection;
         private PipingFailureMechanism pipingFailureMechanism;
@@ -58,7 +60,9 @@
 
             pipingSoilProfilesObserver = new Observer(UpdateSoilProfileColumn);
             assessmentSectionObserver = new Observer(UpdateHydraulicBoundaryLocationsColumn);
-            pipingCalculationGroupObserver = new RecursiveObserver<PipingCalculationGroup, PipingCalculationGroup>(UpdateDataGridViewDataSource, pg => pg.Children);
+            pipingInputObserver = new RecursiveObserver<PipingCalculationGroup, PipingInput>(RefreshDataGridView, pcg => pcg.Children.Concat<object>(pcg.Children.OfType<PipingCalculation>().Select(pc => pc.InputParameters)));
+            pipingCalculationObserver = new RecursiveObserver<PipingCalculationGroup, PipingCalculation>(RefreshDataGridView, pcg => pcg.Children);
+            pipingCalculationGroupObserver = new RecursiveObserver<PipingCalculationGroup, PipingCalculationGroup>(UpdateDataGridViewDataSource, pcg => pcg.Children);
         }
 
         /// <summary>
@@ -112,11 +116,15 @@
                 if (pipingCalculationGroup != null)
                 {
                     UpdateDataGridViewDataSource();
+                    pipingInputObserver.Observable = pipingCalculationGroup;
+                    pipingCalculationObserver.Observable = pipingCalculationGroup;
                     pipingCalculationGroupObserver.Observable = pipingCalculationGroup;
                 }
                 else
                 {
                     dataGridView.DataSource = null;
+                    pipingInputObserver.Observable = null;
+                    pipingCalculationObserver.Observable = null;
                     pipingCalculationGroupObserver.Observable = null;
                 }
             }
@@ -219,6 +227,12 @@
             soilProfileColumn.DataSource = GetSoilProfilesDataSource(pipingSoilProfiles);
         }
 
+        private void RefreshDataGridView()
+        {
+            dataGridView.Refresh();
+            dataGridView.AutoResizeColumns();
+        }
+
         private void UpdateDataGridViewDataSource()
         {
             dataGridView.DataSource = pipingCalculationGroup.GetPipingCalculations()