Changeset 6377 for branches/GP.Grammar.Editor/HeuristicLab.Collections/3.3/ObservableList.cs

Timestamp:

06/07/11 12:49:03 (13 years ago)

Author:

mkommend

Message:

#1479: Merged trunk changes into branch.

File:

• branches/GP.Grammar.Editor/HeuristicLab.Collections/3.3/ObservableList.cs (modified) (2 diffs)

branches/GP.Grammar.Editor/HeuristicLab.Collections/3.3/ObservableList.cs

@@ -24 +24 @@
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Linq;
 using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
 
@@ -211 +212 @@
     }
 
+    /// <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<IndexedItem<T>> oldItems = null;
+      if (list.Any()) oldItems = list.Select((x, i) => new IndexedItem<T>(i, x)).ToList();
+      else oldItems = new List<IndexedItem<T>>();
+
+      int oldCapacity = list.Capacity;
+      list.Clear();
+      list.AddRange(collection);
+
+      List<IndexedItem<T>> items = null;
+      if (list.Any()) items = list.Select((x, i) => new IndexedItem<T>(i, x)).ToList();
+      else items = new List<IndexedItem<T>>();
+
+      if (oldCapacity != list.Capacity) OnPropertyChanged("Capacity");
+      OnPropertyChanged("Item[]");
+      if (oldItems.Count != items.Count) OnPropertyChanged("Count");
+      OnItemsReplaced(items, oldItems);
+    }
+
     public bool Remove(T item) {
       int index = list.IndexOf(item);