52 lines
1.9 KiB
C#
52 lines
1.9 KiB
C#
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 ValueProviderFactoryCollection : Collection<ValueProviderFactory> {
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private IResolver<IEnumerable<ValueProviderFactory>> _serviceResolver;
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public ValueProviderFactoryCollection() {
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_serviceResolver = new MultiServiceResolver<ValueProviderFactory>(() => Items);
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}
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public ValueProviderFactoryCollection(IList<ValueProviderFactory> list)
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: base(list) {
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_serviceResolver = new MultiServiceResolver<ValueProviderFactory>(() => Items);
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}
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internal ValueProviderFactoryCollection(IResolver<IEnumerable<ValueProviderFactory>> serviceResolver, params ValueProviderFactory[] valueProviderFactories)
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: base(valueProviderFactories) {
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_serviceResolver = serviceResolver ?? new MultiServiceResolver<ValueProviderFactory>(
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() => Items
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);
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}
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public IValueProvider GetValueProvider(ControllerContext controllerContext) {
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var valueProviders = from factory in _serviceResolver.Current
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let valueProvider = factory.GetValueProvider(controllerContext)
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where valueProvider != null
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select valueProvider;
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return new ValueProviderCollection(valueProviders.ToList());
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}
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protected override void InsertItem(int index, ValueProviderFactory 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, ValueProviderFactory 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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