MVC :: Validation Attribute Fails With Deeper Objects IsValid Parameter Is Null?

I have an CustomViewModel that is composed of three layers of objects.

The first one is to store and populate lists to be used in dropdowns.

The second one is to store additional propperties that I want.

And the third one is the model itself.

I create the view using View(new Layer(model))

And at the post i have ActionResult .... (Container container)

I made this architecture because i was having a lot of problems with model binder and enums...

So when i post to the form and the ModelBinder checks the validation attributes, the IsValid operation at the attribute X applied to the model class has its parameter value as null.

This behavior doesn't happen if I Just use the simple model to create and post the view.

What I have to do to get this work ?

I made a few changes to the AccountController to use it as sample here, here is the code:

[Code]....

Just change the register page to inherits from RegisterModelLayer.

When I post, the value parameter at the IsValid function at the PropertiesMustMatchAttribute class is null;

As a consequence i can't validate and get an null exception maybe.