private static bool TryGetProviderFromAttributes(Type modelType, out ModelBinderProvider provider)
{
ExtensibleModelBinderAttribute attr = TypeDescriptorHelper.Get(modelType).GetAttributes().OfType <ExtensibleModelBinderAttribute>().FirstOrDefault();
if (attr == null)
{
provider = null;
return(false);
}
if (typeof(ModelBinderProvider).IsAssignableFrom(attr.BinderType))
{
provider = (ModelBinderProvider)Activator.CreateInstance(attr.BinderType);
}
else if (typeof(IExtensibleModelBinder).IsAssignableFrom(attr.BinderType))
{
Type closedBinderType = (attr.BinderType.IsGenericTypeDefinition) ? attr.BinderType.MakeGenericType(modelType.GetGenericArguments()) : attr.BinderType;
IExtensibleModelBinder binderInstance = (IExtensibleModelBinder)Activator.CreateInstance(closedBinderType);
provider = new SimpleModelBinderProvider(modelType, binderInstance)
{
SuppressPrefixCheck = attr.SuppressPrefixCheck
};
}
else
{
string errorMessage = String.Format(CultureInfo.CurrentCulture, MvcResources.ModelBinderProviderCollection_InvalidBinderType,
attr.BinderType, typeof(ModelBinderProvider), typeof(IExtensibleModelBinder));
throw new InvalidOperationException(errorMessage);
}
return(true);
}
internal void RegisterBinderForType(Type modelType, IExtensibleModelBinder modelBinder, bool suppressPrefixCheck)
{
SimpleModelBinderProvider provider = new SimpleModelBinderProvider(modelType, modelBinder)
{
SuppressPrefixCheck = suppressPrefixCheck
};
InsertSimpleProviderAtFront(provider);
}
