104 lines
3.5 KiB
C#
104 lines
3.5 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="ReadOnlyAttribute.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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/*
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*/
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namespace System.ComponentModel {
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using System;
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using System.Diagnostics;
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using System.Security.Permissions;
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/// <devdoc>
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/// <para>Specifies whether the property this attribute is bound to
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/// is read-only or read/write.</para>
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/// </devdoc>
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[AttributeUsage(AttributeTargets.All)]
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public sealed class ReadOnlyAttribute : Attribute {
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private bool isReadOnly = false;
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/// <devdoc>
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/// <para>
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/// Specifies that the property this attribute is bound to is read-only and
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/// cannot be modified in the server explorer. This <see langword='static '/>field is
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/// read-only.
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/// </para>
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/// </devdoc>
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public static readonly ReadOnlyAttribute Yes = new ReadOnlyAttribute(true);
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/// <devdoc>
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/// <para>
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/// Specifies that the property this attribute is bound to is read/write and can
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/// be modified at design time. This <see langword='static '/>field is read-only.
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/// </para>
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/// </devdoc>
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public static readonly ReadOnlyAttribute No = new ReadOnlyAttribute(false);
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/// <devdoc>
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/// <para>
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/// Specifies the default value for the <see cref='System.ComponentModel.ReadOnlyAttribute'/> , which is <see cref='System.ComponentModel.ReadOnlyAttribute.No'/>, that is,
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/// the property this attribute is bound to is read/write. This <see langword='static'/> field is read-only.
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/// </para>
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/// </devdoc>
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public static readonly ReadOnlyAttribute Default = No;
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/// <devdoc>
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/// <para>
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/// Initializes a new instance of the <see cref='System.ComponentModel.ReadOnlyAttribute'/> class.
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/// </para>
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/// </devdoc>
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public ReadOnlyAttribute(bool isReadOnly) {
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this.isReadOnly = isReadOnly;
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}
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/// <devdoc>
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/// <para>
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/// Gets a value indicating whether the property this attribute is bound to is
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/// read-only.
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/// </para>
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/// </devdoc>
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public bool IsReadOnly {
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get {
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return isReadOnly;
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}
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}
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/// <internalonly/>
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/// <devdoc>
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/// </devdoc>
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public override bool Equals(object value) {
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if (this == value) {
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return true;
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}
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ReadOnlyAttribute other = value as ReadOnlyAttribute;
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return other != null && other.IsReadOnly == IsReadOnly;
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}
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/// <devdoc>
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/// <para>
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/// Returns the hashcode for this object.
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/// </para>
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/// </devdoc>
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public override int GetHashCode() {
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return base.GetHashCode();
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}
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/// <internalonly/>
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/// <devdoc>
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/// <para>
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/// Determines if this attribute is the default.
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/// </para>
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/// </devdoc>
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public override bool IsDefaultAttribute() {
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return (this.IsReadOnly == Default.IsReadOnly);
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}
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}
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}
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