Index: dam engine/trunk/src/Deltares.DamEngine.Data/General/Results/NwoDesignResults.cs
===================================================================
diff -u -r444 -r450
--- dam engine/trunk/src/Deltares.DamEngine.Data/General/Results/NwoDesignResults.cs	(.../NwoDesignResults.cs)	(revision 444)
+++ dam engine/trunk/src/Deltares.DamEngine.Data/General/Results/NwoDesignResults.cs	(.../NwoDesignResults.cs)	(revision 450)
@@ -27,14 +27,14 @@
     public class NwoDesignResults
     {
         private string nwoId;
-        private int resultIndex;
+        private int? resultIndex;
         private double? locationXrdStart;
         private double? locationYrdStart;
         private double? locationZrdStart;
         private double? locationXrdEnd;
         private double? locationYrdEnd;
         private double? locationZrdEnd;
-        private int numberOfIterations;
+        private int? numberOfIterations;
         private double? safetyFactor;
         private double? zone1SafetyFactor;
         private double? localZone1EntryPointX;
@@ -68,7 +68,7 @@
         /// <value>
         /// The index of the result.
         /// </value>
-        public int ResultIndex
+        public int? ResultIndex
         {
             get
             {
@@ -194,7 +194,7 @@
         /// <value>
         /// The number of iterations.
         /// </value>
-        public int NumberOfIterations
+        public int? NumberOfIterations
         {
             get
             {