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namespace System.Web.Mvc {
using System;
using System.Globalization;
public sealed class ChildActionValueProvider : DictionaryValueProvider<object> {
public ChildActionValueProvider(ControllerContext controllerContext)
: base(controllerContext.RouteData.Values, CultureInfo.InvariantCulture) {
}
private static string _childActionValuesKey = Guid.NewGuid().ToString();
internal static string ChildActionValuesKey {
get {
return _childActionValuesKey;
}
}
public override ValueProviderResult GetValue(string key) {
if (key == null) {
throw new ArgumentNullException("key");
}
ValueProviderResult explicitValues = base.GetValue(ChildActionValuesKey);
if (explicitValues != null) {
DictionaryValueProvider<object> rawExplicitValues = explicitValues.RawValue as DictionaryValueProvider<object>;
if (rawExplicitValues != null) {
return rawExplicitValues.GetValue(key);
}
}
return null;
}
}
}
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