namespace System.Web.ModelBinding {
    using System.Collections.Generic;
 
    public sealed class DictionaryModelBinderProvider : ModelBinderProvider {
 
        public override IModelBinder GetBinder(ModelBindingExecutionContext modelBindingExecutionContext, ModelBindingContext bindingContext) {
            ModelBinderUtil.ValidateBindingContext(bindingContext);
 
            if (bindingContext.UnvalidatedValueProvider.ContainsPrefix(bindingContext.ModelName)) {
                return CollectionModelBinderUtil.GetGenericBinder(typeof(IDictionary<,>), typeof(Dictionary<,>), typeof(DictionaryModelBinder<,>), bindingContext.ModelMetadata);
            }
            else {
                return null;
            }
        }
 
    }
}