1 /* ****************************************************************************
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3 * Copyright (c) Microsoft Corporation. All rights reserved.
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5 * This software is subject to the Microsoft Public License (Ms-PL).
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6 * A copy of the license can be found in the license.htm file included
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7 * in this distribution.
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9 * You must not remove this notice, or any other, from this software.
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11 * ***************************************************************************/
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13 namespace System.Web.Mvc {
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16 [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
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17 public sealed class ChildActionOnlyAttribute : FilterAttribute, IAuthorizationFilter {
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19 public void OnAuthorization(AuthorizationContext filterContext) {
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20 if (filterContext == null) {
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21 throw new ArgumentNullException("filterContext");
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24 if (!filterContext.IsChildAction) {
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25 throw Error.ChildActionOnlyAttribute_MustBeInChildRequest(filterContext.ActionDescriptor);
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