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//
// System.Web.UI.ControlCollection.cs
//
// Duncan Mak (duncan@ximian.com)
//
// (C) Ximian, Inc.
//
using System;
using System.Collections;
namespace System.Web.UI {
public class ControlCollection : ICollection, IEnumerable
{
ArrayList list = new ArrayList ();
Control owner;
public ControlCollection (Control owner)
{
if (owner == null)
throw new ArgumentException ();
this.owner = owner;
}
public int Count {
get { return list.Count; }
}
public bool IsReadOnly {
get { return list.IsReadOnly; }
}
public bool IsSynchronized {
get { return list.IsSynchronized; }
}
public virtual Control this [int index] {
get { return list [index] as Control; }
}
protected Control Owner {
get { return owner; }
}
public object SyncRoot {
get { return list.SyncRoot; }
}
public virtual void Add (Control child)
{
if (child == null)
throw new ArgumentNullException ();
if (IsReadOnly)
throw new HttpException ();
list.Add (child);
owner.AddedControl (child, list.Count - 1);
}
public virtual void AddAt (int index, Control child)
{
if (child == null) // maybe we should check for ! (child is Control)?
throw new ArgumentNullException ();
if ((index < -1) || (index > Count))
throw new ArgumentOutOfRangeException ();
if (IsReadOnly)
throw new HttpException ();
if (index == -1){
Add (child);
} else {
list [index] = child;
owner.AddedControl (child, index);
}
}
public virtual void Clear ()
{
list.Clear ();
}
public virtual bool Contains (Control c)
{
return list.Contains (c as object);
}
public void CopyTo (Array array, int index)
{
list.CopyTo (array, index);
}
public IEnumerator GetEnumerator ()
{
return list.GetEnumerator ();
}
public virtual int IndexOf (Control c)
{
return list.IndexOf (c as object);
}
public virtual void Remove (Control value)
{
list.Remove (value as object);
}
public virtual void RemoveAt (int index)
{
if (IsReadOnly)
throw new HttpException ();
list.RemoveAt (index);
}
}
}
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