Changeset 6539 for trunk/sources

Timestamp:

07/07/11 15:39:57 (13 years ago)

Author:

mkommend

Message:

#1555: Optimized rebuilding of the image list due to performance reasons.

File:

• trunk/sources/HeuristicLab.Optimization.Views/3.3/ExperimentTreeView.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Optimization.Views/3.3/ExperimentTreeView.cs

@@ -848 +848 @@
       }
 
+      treeView.BeginUpdate();
+
       treeView.ImageList.Images.Clear();
-      foreach (TreeNode treeNode in IterateTreeNodes()) {
+      var topLevelNodes = treeView.Nodes.OfType<TreeNode>().ToArray();
+      var nodes = IterateTreeNodes().ToList();
+      treeView.Nodes.Clear();
+
+      foreach (TreeNode treeNode in nodes) {
         var item = (IItem)treeNode.Tag;
         treeView.ImageList.Images.Add(item == null ? HeuristicLab.Common.Resources.VSImageLibrary.Nothing : item.ItemImage);
         treeNode.ImageIndex = treeView.ImageList.Images.Count - 1;
-        treeNode.SelectedImageIndex = treeNode.ImageIndex;
-      }
+      }
+      treeView.Nodes.AddRange(topLevelNodes);
+      treeView.EndUpdate();
     }
     #endregion