Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs
===================================================================
diff -u -r6750 -r6770
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs	(.../DamProjectData.cs)	(revision 6750)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs	(.../DamProjectData.cs)	(revision 6770)
@@ -445,6 +445,22 @@
         }
     }
 
+    [Validate]
+    public ValidationResult[] ValidateEnoughLocationJobs()
+    {
+        if (SelectedLocationJobs.Count == 0)
+        {
+            return new[]
+            {
+                new ValidationResult(ValidationResultType.Error,
+                                     LocalizationManager.GetTranslatedText(this, "NoLocationsSelected"),
+                                     this)
+            };
+        }
+ 
+        return new ValidationResult[0];
+    }
+ 
     public bool HasResults()
     {
         bool hasResults = waterBoard.Dikes.Count > 0 && waterBoardJob != null && waterBoardJob.Jobs.Count > 0;