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namespace System.Web.ModelBinding {
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
public class ModelBinderDictionary : IDictionary<Type, IModelBinder> {
private IModelBinder _defaultBinder;
private readonly Dictionary<Type, IModelBinder> _innerDictionary = new Dictionary<Type, IModelBinder>();
private ModelBinderProviderCollection _modelBinderProviders;
public ModelBinderDictionary()
: this(ModelBinderProviders.Providers) {
}
internal ModelBinderDictionary(ModelBinderProviderCollection modelBinderProviders) {
_modelBinderProviders = modelBinderProviders;
}
public int Count {
get {
return _innerDictionary.Count;
}
}
public IModelBinder DefaultBinder {
get {
if (_defaultBinder == null) {
_defaultBinder = new DefaultModelBinder();
}
return _defaultBinder;
}
set {
_defaultBinder = value;
}
}
public bool IsReadOnly {
get {
return ((IDictionary<Type, IModelBinder>)_innerDictionary).IsReadOnly;
}
}
public ICollection<Type> Keys {
get {
return _innerDictionary.Keys;
}
}
[SuppressMessage("Microsoft.Usage", "CA2301:EmbeddableTypesInContainersRule", MessageId = "_innerDictionary", Justification = "Chances of using model binders for com interop types is pretty low.")]
public IModelBinder this[Type key]
{
get {
IModelBinder binder;
_innerDictionary.TryGetValue(key, out binder);
return binder;
}
set {
_innerDictionary[key] = value;
}
}
public ICollection<IModelBinder> Values {
get {
return _innerDictionary.Values;
}
}
public void Add(KeyValuePair<Type, IModelBinder> item) {
((IDictionary<Type, IModelBinder>)_innerDictionary).Add(item);
}
[SuppressMessage("Microsoft.Usage", "CA2301:EmbeddableTypesInContainersRule", MessageId = "_innerDictionary", Justification = "Chances of using model binders for com interop types is pretty low.")]
public void Add(Type key, IModelBinder value)
{
_innerDictionary.Add(key, value);
}
public void Clear() {
_innerDictionary.Clear();
}
public bool Contains(KeyValuePair<Type, IModelBinder> item) {
return ((IDictionary<Type, IModelBinder>)_innerDictionary).Contains(item);
}
public bool ContainsKey(Type key) {
return _innerDictionary.ContainsKey(key);
}
public void CopyTo(KeyValuePair<Type, IModelBinder>[] array, int arrayIndex) {
((IDictionary<Type, IModelBinder>)_innerDictionary).CopyTo(array, arrayIndex);
}
#if UNDEF
public IModelBinder GetBinder(Type modelType) {
return GetBinder(modelType, true /* fallbackToDefault */);
}
public virtual IModelBinder GetBinder(Type modelType, bool fallbackToDefault) {
if (modelType == null) {
throw new ArgumentNullException("modelType");
}
return GetBinder(modelType, (fallbackToDefault) ? DefaultBinder : null);
}
private IModelBinder GetBinder(Type modelType, IModelBinder fallbackBinder) {
// Try to look up a binder for this type. We use this order of precedence:
// 1. Binder returned from provider
// 2. Binder registered in the global table
// 3. Binder attribute defined on the type
// 4. Supplied fallback binder
IModelBinder binder = _modelBinderProviders.GetBinder(modelType);
if (binder != null) {
return binder;
}
if (_innerDictionary.TryGetValue(modelType, out binder)) {
return binder;
}
binder = ModelBinders.GetBinderFromAttributes(modelType,
() => String.Format(CultureInfo.CurrentCulture, SR.GetString(SR.ModelBinderDictionary_MultipleAttributes), modelType.FullName));
return binder ?? fallbackBinder;
}
#endif
public IEnumerator<KeyValuePair<Type, IModelBinder>> GetEnumerator() {
return _innerDictionary.GetEnumerator();
}
public bool Remove(KeyValuePair<Type, IModelBinder> item) {
return ((IDictionary<Type, IModelBinder>)_innerDictionary).Remove(item);
}
public bool Remove(Type key) {
return _innerDictionary.Remove(key);
}
public bool TryGetValue(Type key, out IModelBinder value) {
return _innerDictionary.TryGetValue(key, out value);
}
#region IEnumerable Members
IEnumerator IEnumerable.GetEnumerator() {
return ((IEnumerable)_innerDictionary).GetEnumerator();
}
#endregion
}
}
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