Changeset 8317

Timestamp:

07/23/12 15:57:46 (12 years ago)

Author:

mkommend

Message:

#1901: Changed CollectionItemChangedEventArgs to use empty enumerables instead of null to indicate the absence of items.

File:

• trunk/sources/HeuristicLab.Collections/3.3/CollectionItemsChangedEventArgs.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Collections/3.3/CollectionItemsChangedEventArgs.cs

@@ -22 +22 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 
 namespace HeuristicLab.Collections {
@@ -36 +37 @@
     public CollectionItemsChangedEventArgs(IEnumerable<T> items) {
       this.items = items;
-      this.oldItems = null;
+      this.oldItems = Enumerable.Empty<T>();
     }
     public CollectionItemsChangedEventArgs(IEnumerable<T> items, IEnumerable<T> oldItems) {