Index: dam engine/trunk/src/Deltares.DamEngine.Data/General/DamProjectData.cs
===================================================================
diff -u -r452 -r469
--- dam engine/trunk/src/Deltares.DamEngine.Data/General/DamProjectData.cs	(.../DamProjectData.cs)	(revision 452)
+++ dam engine/trunk/src/Deltares.DamEngine.Data/General/DamProjectData.cs	(.../DamProjectData.cs)	(revision 469)
@@ -20,9 +20,7 @@
 // All rights reserved.
 
 using System;
-using System.Collections;
 using System.Collections.Generic;
-using System.ComponentModel;
 using System.Linq;
 using Deltares.DamEngine.Data.Design;
 using Deltares.DamEngine.Data.General.Results;
@@ -271,6 +269,10 @@
 
                 return designCalculations;
             }
+            set
+            {
+                designCalculations = value;
+            }
         }
 
         public List<RWSchematizationFactorResult> SchematizationFactors