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