2009-01-02 Ivan N. Zlatev <contact@i-nz.net>

[mono.git] / mcs / class / Managed.Windows.Forms / System.Windows.Forms / BindingsCollection.cs

diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/BindingsCollection.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/BindingsCollection.cs
index 8412097d3e0d8f1e2ae3df59e72417f7942ff31e..d9a82c40e9c6ca55af087b2fe56d579d1db7c11d 100644 (file)
--- a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/BindingsCollection.cs
+++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/BindingsCollection.cs
@@ -21,7 +21,7 @@
 //
 // Authors:
 //     Peter Bartok    pbartok@novell.com
-//
+//      Jackson Harper  jackson@ximian.com
 //
 
 
@@ -33,8 +33,10 @@ using System.ComponentModel;
 namespace System.Windows.Forms {
        [DefaultEvent("CollectionChanged")]
        public class BindingsCollection : BaseCollection {
-               #region Public Constructors
-               internal BindingsCollection () {
+
+#region Public Constructors
+               internal BindingsCollection ()
+               {
                }
                #endregion      // Public Constructors
 
@@ -65,24 +67,42 @@ namespace System.Windows.Forms {
                        AddCore(binding);
                }
 
-               protected virtual void AddCore(Binding dataBinding) {
+               protected virtual void AddCore (Binding dataBinding) 
+               {
+                       CollectionChangeEventArgs args = new CollectionChangeEventArgs (CollectionChangeAction.Add, dataBinding);
+#if NET_2_0
+                       OnCollectionChanging (args);
+#endif
                        base.List.Add(dataBinding);
-                       OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Add, base.List));
+                       OnCollectionChanged (args);
                }
 
                protected internal void Clear() {
                        ClearCore();
                }
 
-               protected virtual void ClearCore() {
+               protected virtual void ClearCore() 
+               {
+                       CollectionChangeEventArgs args = new CollectionChangeEventArgs(CollectionChangeAction.Refresh, null);
+#if NET_2_0
+                       OnCollectionChanging (args);
+#endif
                        base.List.Clear();
-                       OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Refresh, base.List));
+                       OnCollectionChanged (args);
                }
 
                protected virtual void OnCollectionChanged(System.ComponentModel.CollectionChangeEventArgs ccevent) {
                        if (CollectionChanged!=null) CollectionChanged(this, ccevent);
                }
 
+#if NET_2_0
+               protected virtual void OnCollectionChanging (CollectionChangeEventArgs e)
+               {
+                       if (CollectionChanging != null)
+                               CollectionChanging (this, e);
+               }
+#endif
+
                protected internal void Remove(Binding binding) {
                        RemoveCore(binding);
                }
@@ -92,9 +112,14 @@ namespace System.Windows.Forms {
                        OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Remove, base.List));
                }
 
-               protected virtual void RemoveCore(Binding dataBinding) {
+               protected virtual void RemoveCore(Binding dataBinding) 
+               {
+                       CollectionChangeEventArgs args = new CollectionChangeEventArgs(CollectionChangeAction.Remove, dataBinding);
+#if NET_2_0
+                       OnCollectionChanging (args);
+#endif
                        base.List.Remove(dataBinding);
-                       OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Remove, base.List));
+                       OnCollectionChanged (args);
                }
 
                protected internal bool ShouldSerializeMyAll() {
@@ -106,8 +131,16 @@ namespace System.Windows.Forms {
                }
                #endregion      // Public Instance Methods
 
+               internal bool Contains (Binding binding)
+               {
+                       return List.Contains (binding);
+               }
+
                #region Events
                public event CollectionChangeEventHandler       CollectionChanged;
+#if NET_2_0
+               public event CollectionChangeEventHandler       CollectionChanging;
+#endif
                #endregion      // Events
        }
 }