//
// Contact:
// Moonlight List (moonlight-list@lists.ximian.com)
//
// Copyright 2008-2009 Novell, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections.Specialized;
namespace System.Windows.Controls{
public sealed partial class ItemCollection : PresentationFrameworkCollection<object>, INotifyCollectionChanged {
bool readOnly;
internal void SetIsReadOnly (bool readOnly)
{
this.readOnly = readOnly;
}
// Note: Parameter handling is different from other PresentationFrameworkCollection<T> types
// but it may not be limited to this
internal override bool NullCheck (NotifyCollectionChangedAction action, object value)
{
if (action == NotifyCollectionChangedAction.Remove && value == null)
return true;
if (value == null)
throw new ArgumentException ();
return false;
}
internal override void AddImpl (object value)
{
AddImpl (value, false);
}
internal override int IndexOfImpl (object value)
{
if (value == null)
return -1;
if (value.GetType ().IsValueType) {
int count = Count;
for (int i = 0; i < count; i++)
if (this [i].Equals (value))
return i;
return -1;
} else {
return base.IndexOfImpl (value, false);
}
}
internal override bool IsReadOnlyImpl ()
{
return readOnly;
}
event NotifyCollectionChangedEventHandler CollectionChanged;
event NotifyCollectionChangedEventHandler INotifyCollectionChanged.CollectionChanged {
add { this.CollectionChanged += value; }
remove { this.CollectionChanged -= value; }
}
}
}
|