Merge pull request #819 from brendanzagaeski/patch-1

[mono.git] / mcs / class / System / System.ComponentModel / BindingList.cs

diff --git a/mcs/class/System/System.ComponentModel/BindingList.cs b/mcs/class/System/System.ComponentModel/BindingList.cs
index ece028c0e075b62d0c0e9d80478ef38a3feee300..b4c0ce8b69b1cb2ba325bf0bd81adaa229b173eb 100644 (file)
--- a/mcs/class/System/System.ComponentModel/BindingList.cs
+++ b/mcs/class/System/System.ComponentModel/BindingList.cs
@@ -207,7 +207,11 @@ namespace System.ComponentModel {
                protected override void ClearItems ()
                {
                        EndNew (pending_add_index);
-
+                       if (type_raises_item_changed_events) {
+                               foreach ( T item in base.Items ) {
+                                       (item as INotifyPropertyChanged).PropertyChanged -= Item_PropertyChanged;
+                               }
+                       }
                        base.ClearItems ();
 
                        OnListChanged (new ListChangedEventArgs (ListChangedType.Reset, -1));
@@ -237,6 +241,14 @@ namespace System.ComponentModel {
 
                        if (raise_list_changed_events)
                                OnListChanged (new ListChangedEventArgs (ListChangedType.ItemAdded, index));
+
+                       if (item != null && type_raises_item_changed_events)
+                               (item as INotifyPropertyChanged).PropertyChanged += Item_PropertyChanged;
+               }
+
+               void Item_PropertyChanged (object item, PropertyChangedEventArgs args)
+               {
+                       OnListChanged (new ListChangedEventArgs (ListChangedType.ItemChanged, base.IndexOf ((T) item)) );
                }
 
                protected virtual void OnAddingNew (AddingNewEventArgs e)
@@ -257,7 +269,9 @@ namespace System.ComponentModel {
                                throw new NotSupportedException ();
 
                        EndNew (pending_add_index);
-
+                       if (type_raises_item_changed_events) {
+                               (base[index] as INotifyPropertyChanged).PropertyChanged -= Item_PropertyChanged;
+                       }
                        base.RemoveItem (index);
 
                        if (raise_list_changed_events)
@@ -281,6 +295,10 @@ namespace System.ComponentModel {
 
                protected override void SetItem (int index, T item)
                {
+                       if (type_raises_item_changed_events) {
+                               (base[index] as INotifyPropertyChanged).PropertyChanged -= Item_PropertyChanged;
+                               (item as INotifyPropertyChanged).PropertyChanged += Item_PropertyChanged;
+                       }
                        base.SetItem (index, item);
 
                        OnListChanged (new ListChangedEventArgs (ListChangedType.ItemChanged, index));
@@ -358,3 +376,4 @@ namespace System.ComponentModel {
        }
 
 }
+