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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
namespace System.Web.Mvc
{
public class ModelValidatorProviderCollection : Collection<ModelValidatorProvider>
{
private IResolver<IEnumerable<ModelValidatorProvider>> _serviceResolver;
public ModelValidatorProviderCollection()
{
_serviceResolver = new MultiServiceResolver<ModelValidatorProvider>(() => Items);
}
public ModelValidatorProviderCollection(IList<ModelValidatorProvider> list)
: base(list)
{
_serviceResolver = new MultiServiceResolver<ModelValidatorProvider>(() => Items);
}
internal ModelValidatorProviderCollection(IResolver<IEnumerable<ModelValidatorProvider>> serviceResolver, params ModelValidatorProvider[] validatorProvidors)
: base(validatorProvidors)
{
_serviceResolver = serviceResolver ?? new MultiServiceResolver<ModelValidatorProvider>(() => Items);
}
private IEnumerable<ModelValidatorProvider> CombinedItems
{
get { return _serviceResolver.Current; }
}
protected override void InsertItem(int index, ModelValidatorProvider item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
base.InsertItem(index, item);
}
protected override void SetItem(int index, ModelValidatorProvider item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
base.SetItem(index, item);
}
public IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, ControllerContext context)
{
return CombinedItems.SelectMany(provider => provider.GetValidators(metadata, context));
}
}
}
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