55 lines
1.8 KiB
C#
55 lines
1.8 KiB
C#
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/* ****************************************************************************
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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* This software is subject to the Microsoft Public License (Ms-PL).
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* A copy of the license can be found in the license.htm file included
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* in this distribution.
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*
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* You must not remove this notice, or any other, from this software.
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*
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* ***************************************************************************/
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namespace System.Web.Mvc {
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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public class ValueProviderCollection : Collection<IValueProvider>, IValueProvider {
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public ValueProviderCollection() {
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}
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public ValueProviderCollection(IList<IValueProvider> list)
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: base(list) {
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}
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public virtual bool ContainsPrefix(string prefix) {
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return this.Any(vp => vp.ContainsPrefix(prefix));
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}
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public virtual ValueProviderResult GetValue(string key) {
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return (from provider in this
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let result = provider.GetValue(key)
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where result != null
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select result).FirstOrDefault();
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}
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protected override void InsertItem(int index, IValueProvider item) {
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if (item == null) {
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throw new ArgumentNullException("item");
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}
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base.InsertItem(index, item);
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}
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protected override void SetItem(int index, IValueProvider item) {
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if (item == null) {
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throw new ArgumentNullException("item");
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}
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base.SetItem(index, item);
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}
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}
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}
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