Changeset 4626

Timestamp:

10/20/10 13:33:53 (14 years ago)

Author:

svonolfe

Message:

Fixed null reference exception #1236

File:

• trunk/sources/HeuristicLab.Problems.VehicleRouting/3.3/VehicleRoutingProblem.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.VehicleRouting/3.3/VehicleRoutingProblem.cs

@@ -352 +352 @@
     }
     void DistanceMatrixParameter_ValueChanged(object sender, EventArgs e) {
-      DistanceMatrix.ItemChanged += new EventHandler<EventArgs<int, int>>(DistanceMatrix_ItemChanged);
-      DistanceMatrix.Reset += new EventHandler(DistanceMatrix_Reset);
+      if (DistanceMatrix != null) {
+        DistanceMatrix.ItemChanged += new EventHandler<EventArgs<int, int>>(DistanceMatrix_ItemChanged);
+        DistanceMatrix.Reset += new EventHandler(DistanceMatrix_Reset);
+      }
       EvalBestKnownSolution();
     }