Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/EmptyPipingOutputTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/EmptyPipingOutputTreeNodeInfoTest.cs	(.../EmptyPipingOutputTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/EmptyPipingOutputTreeNodeInfoTest.cs	(.../EmptyPipingOutputTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -73,7 +73,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -108,7 +108,7 @@
             Assert.IsNotNull(info.CanRemove);
             Assert.IsNotNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNotNull(info.CanDrag);
             Assert.IsNotNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs	(.../PipingCalculationScenarioContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs	(.../PipingCalculationScenarioContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -83,7 +83,7 @@
             Assert.IsNotNull(info.CanRemove);
             Assert.IsNotNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNotNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingFailureMechanismContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingFailureMechanismContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -85,7 +85,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingInputContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingInputContextTreeNodeInfoTest.cs	(.../PipingInputContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingInputContextTreeNodeInfoTest.cs	(.../PipingInputContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -77,7 +77,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingOutputContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingOutputContextTreeNodeInfoTest.cs	(.../PipingOutputContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingOutputContextTreeNodeInfoTest.cs	(.../PipingOutputContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -73,7 +73,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingProbabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingProbabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../PipingProbabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingProbabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../PipingProbabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -75,7 +75,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingScenariosContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingScenariosContextTreeNodeInfoTest.cs	(.../PipingScenariosContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingScenariosContextTreeNodeInfoTest.cs	(.../PipingScenariosContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -70,7 +70,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelCollectionContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelCollectionContextTreeNodeInfoTest.cs	(.../PipingStochasticSoilModelCollectionContextTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelCollectionContextTreeNodeInfoTest.cs	(.../PipingStochasticSoilModelCollectionContextTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -64,7 +64,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelTreeNodeInfoTest.cs	(.../PipingStochasticSoilModelTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilModelTreeNodeInfoTest.cs	(.../PipingStochasticSoilModelTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -69,7 +69,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilProfileTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilProfileTreeNodeInfoTest.cs	(.../PipingStochasticSoilProfileTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingStochasticSoilProfileTreeNodeInfoTest.cs	(.../PipingStochasticSoilProfileTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -68,7 +68,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineCollectionTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineCollectionTreeNodeInfoTest.cs	(.../PipingSurfaceLineCollectionTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineCollectionTreeNodeInfoTest.cs	(.../PipingSurfaceLineCollectionTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -76,7 +76,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineTreeNodeInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r050f297b6b5c90409448e64b5383c017ce9e4ef5
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineTreeNodeInfoTest.cs	(.../PipingSurfaceLineTreeNodeInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingSurfaceLineTreeNodeInfoTest.cs	(.../PipingSurfaceLineTreeNodeInfoTest.cs)	(revision 050f297b6b5c90409448e64b5383c017ce9e4ef5)
@@ -73,7 +73,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);