Changeset 17718 for branches/2521_ProblemRefactoring/HeuristicLab.Collections/3.3/ObservableCollection.cs

Timestamp:

08/05/20 05:46:07 (4 years ago)

Author:

abeham

Message:

#2521: completed port of VRP (needs testing though)

File:

• branches/2521_ProblemRefactoring/HeuristicLab.Collections/3.3/ObservableCollection.cs (modified) (1 diff)

branches/2521_ProblemRefactoring/HeuristicLab.Collections/3.3/ObservableCollection.cs

@@ -103 +103 @@
         if (list.Capacity != capacity)
           OnPropertyChanged("Capacity");
-        OnPropertyChanged("Item[]");
-        OnPropertyChanged("Count");
-      }
+        OnPropertyChanged("Count");
+      }
+    }
+
+    /// <summary>
+    /// Performs a Clear and an AddRange, but does not fire separate events for those operations
+    /// </summary>
+    /// <param name="collection"></param>
+    public void Replace(IEnumerable<T> collection) {
+      List<T> oldItems = null;
+      if (list.Any()) oldItems = new List<T>(list);
+      else oldItems = new List<T>();
+
+      int oldCapacity = list.Capacity;
+      list.Clear();
+      list.AddRange(collection);
+
+      List<T> items = null;
+      if (list.Any()) items = new List<T>(list);
+      else items = new List<T>();
+
+      OnCollectionReset(items, oldItems);
+      if (oldCapacity != list.Capacity) OnPropertyChanged("Capacity");
+      if (oldItems.Count != items.Count) OnPropertyChanged("Count");
     }