Add warning to people who didn't implement INotifyPropertyChanging

reactiveui · Feb 22, 2011 · 03fe6ec · 03fe6ec
1 parent e720066
commit 03fe6ec
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/ReactiveUI/MakeObjectReactiveHelper.cs b/ReactiveUI/MakeObjectReactiveHelper.cs
@@ -19,6 +19,9 @@ public MakeObjectReactiveHelper(INotifyPropertyChanged hostObject)
             if (hostChanging != null) {
                 hostChanging.PropertyChanging += (o, e) => _Changing.OnNext(
                     new ObservedChange<object, object>() { Sender = o, PropertyName = e.PropertyName });
+            } else {
+                this.Log().ErrorFormat("'{0}' does not implement INotifyPropertyChanging - RxUI may return duplicate change notifications",
+                    hostObject.GetType().FullName);
             }
 
             hostObject.PropertyChanged += (o, e) => _Changed.OnNext(