81 lines
2.4 KiB
C#
81 lines
2.4 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="IDReferencePropertyAttribute.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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{
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using System;
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using System.Diagnostics.CodeAnalysis;
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/// <devdoc>
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/// An IDReferencePropertyAttribute metadata attribute can be applied to string properties
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/// that contain ID references.
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/// This can be used to identify ID reference properties which allows design-time functionality
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/// to do interesting things with the property values.
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/// </devdoc>
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[AttributeUsage(AttributeTargets.Property)]
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public sealed class IDReferencePropertyAttribute : Attribute
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{
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private Type _referencedControlType;
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/// <devdoc>
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/// </devdoc>
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public IDReferencePropertyAttribute()
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: this(typeof(Control))
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{
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}
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/// <devdoc>
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/// Used to mark a property as an ID reference. In addition, the type of controls
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/// can be specified.
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/// </devdoc>
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public IDReferencePropertyAttribute(Type referencedControlType)
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{
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_referencedControlType = referencedControlType;
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}
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/// <devdoc>
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/// The types of controls allowed by the property.
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/// </devdoc>
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public Type ReferencedControlType
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{
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get
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{
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return _referencedControlType;
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}
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}
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/// <internalonly/>
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[SuppressMessage("Microsoft.Usage", "CA2303:FlagTypeGetHashCode", Justification = "The types are Sytem.Web.UI.Control derived classes and not com interop types.")]
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public override int GetHashCode()
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{
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return ((ReferencedControlType != null) ? ReferencedControlType.GetHashCode() : 0);
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}
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/// <internalonly/>
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public override bool Equals(object obj)
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{
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if (obj == this)
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{
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return true;
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}
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IDReferencePropertyAttribute other = obj as IDReferencePropertyAttribute;
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if (other != null)
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{
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return (ReferencedControlType == other.ReferencedControlType);
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}
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return false;
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}
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}
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}
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