Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CompositeJob.cs
===================================================================
diff -u -r6436 -r6968
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CompositeJob.cs	(.../CompositeJob.cs)	(revision 6436)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CompositeJob.cs	(.../CompositeJob.cs)	(revision 6968)
@@ -21,6 +21,7 @@
 
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Linq;
 using Deltares.Standard.Attributes;
 
 namespace Deltares.Dam.Data;
@@ -37,37 +38,15 @@
     {
         get
         {
-            var containsRun = false;
-            var containsNoRun = false;
-
-            foreach (DamJob job in jobs)
-            {
-                if (!job.Run.HasValue)
-                {
-                    containsRun = true;
-                    containsNoRun = true;
-                }
-                else if (job.Run.Value)
-                {
-                    containsRun = true;
-                }
-                else
-                {
-                    containsNoRun = true;
-                }
-            }
-
+            bool containsRun = jobs.Any(job => job.Run != false);
+            bool containsNoRun = jobs.Any(job => job.Run != true);
+            
             if (containsRun && containsNoRun)
             {
                 return null;
             }
 
-            if (containsRun)
-            {
-                return true;
-            }
-
-            return false;
+            return containsRun;
         }
         set
         {