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//------------------------------------------------------------------------------
// <copyright file="EmptyControlCollection.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {
using System;
using System.Collections;
using System.Security.Permissions;
/// <devdoc>
/// <para>
/// Represents a ControlCollection that is always empty.
/// </para>
/// </devdoc>
public class EmptyControlCollection : ControlCollection {
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public EmptyControlCollection(Control owner) : base(owner) {
}
private void ThrowNotSupportedException() {
throw new HttpException(SR.GetString(SR.Control_does_not_allow_children,
Owner.GetType().ToString()));
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override void Add(Control child) {
ThrowNotSupportedException();
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override void AddAt(int index, Control child) {
ThrowNotSupportedException();
}
}
}
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