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//
// System.Web.UI.DataBindingCollection.cs
//
// Duncan Mak (duncan@ximian.com)
//
// (C) Ximian, Inc.
// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
// 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.ComponentModel;
using System.Collections;
using System.Security.Permissions;
namespace System.Web.UI {
// CAS - no InheritanceDemand here as the class is sealed
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class DataBindingCollection : ICollection, IEnumerable
{
static readonly object changedEvent = new object ();
Hashtable list;
ArrayList removed;
EventHandlerList events = new EventHandlerList ();
public event EventHandler Changed {
add { events.AddHandler (changedEvent, value); }
remove { events.RemoveHandler (changedEvent, value); }
}
public DataBindingCollection ()
{
list = new Hashtable ();
removed = new ArrayList ();
}
public int Count {
get { return list.Count; }
}
public bool IsReadOnly {
get { return list.IsReadOnly; }
}
public bool IsSynchronized {
get { return list.IsSynchronized; }
}
public DataBinding this [string propertyName] {
get { return list [propertyName] as DataBinding; }
}
public string [] RemovedBindings {
get { return (string []) removed.ToArray (typeof (string)); }
}
public object SyncRoot {
get { return list.SyncRoot; }
}
public void Add (DataBinding binding)
{
list.Add (binding.PropertyName, binding);
RaiseChanged ();
}
public void Clear ()
{
list.Clear ();
}
public void CopyTo (Array array, int index)
{
list.Values.CopyTo (array, index);
}
public IEnumerator GetEnumerator ()
{
return list.GetEnumerator ();
}
public void Remove (DataBinding binding)
{
string key = binding.PropertyName;
Remove (key);
}
public void Remove (string propertyName)
{
removed.Add (propertyName);
list.Remove (propertyName);
RaiseChanged ();
}
public void Remove (string propertyName,
bool addToRemovedList)
{
if (addToRemovedList)
removed.Add (String.Empty); // LAMESPEC
else
removed.Add (propertyName);
list.Remove (propertyName);
}
public bool Contains (string propertyName)
{
return list.Contains (propertyName);
}
internal void RaiseChanged ()
{
EventHandler eh = events [changedEvent] as EventHandler;
if (eh != null)
eh (this, EventArgs.Empty);
}
}
}
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