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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* This software is subject to the Microsoft Public License (Ms-PL).
* A copy of the license can be found in the license.htm file included
* in this distribution.
*
* You must not remove this notice, or any other, from this software.
*
* ***************************************************************************/
namespace System.Web.Mvc {
using System;
using System.Collections.Specialized;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Web.Mvc.Resources;
[SuppressMessage("Microsoft.Usage", "CA2237:MarkISerializableTypesWithSerializable",
Justification = "It is not anticipated that users will need to serialize this type.")]
[SuppressMessage("Microsoft.Design", "CA1035:ICollectionImplementationsHaveStronglyTypedMembers",
Justification = "It is not anticipated that users will call FormCollection.CopyTo().")]
[FormCollectionBinder]
public sealed class FormCollection : NameValueCollection, IValueProvider {
public FormCollection() {
}
public FormCollection(NameValueCollection collection) {
if (collection == null) {
throw new ArgumentNullException("collection");
}
Add(collection);
}
public ValueProviderResult GetValue(string name) {
if (name == null) {
throw new ArgumentNullException("name");
}
string[] rawValue = GetValues(name);
if (rawValue == null) {
return null;
}
string attemptedValue = this[name];
return new ValueProviderResult(rawValue, attemptedValue, CultureInfo.CurrentCulture);
}
public IValueProvider ToValueProvider() {
return this;
}
#region IValueProvider Members
bool IValueProvider.ContainsPrefix(string prefix) {
return ValueProviderUtil.CollectionContainsPrefix(AllKeys, prefix);
}
ValueProviderResult IValueProvider.GetValue(string key) {
return GetValue(key);
}
#endregion
private sealed class FormCollectionBinderAttribute : CustomModelBinderAttribute {
// since the FormCollectionModelBinder.BindModel() method is thread-safe, we only need to keep
// a single instance of the binder around
private static readonly FormCollectionModelBinder _binder = new FormCollectionModelBinder();
public override IModelBinder GetBinder() {
return _binder;
}
// this class is used for generating a FormCollection object
private sealed class FormCollectionModelBinder : IModelBinder {
public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) {
if (controllerContext == null) {
throw new ArgumentNullException("controllerContext");
}
return new FormCollection(controllerContext.HttpContext.Request.Form);
}
}
}
}
}
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