Question

I started getting this error when posting the form back with Model Binder. To test the problem I reduced the postback to one string property of the model but i still get the overflow error. Can anyone suggest what would cause this?

UPDATE The problem appears to be related to the property in the model that is a foreign key. If this key is removed, the binding works. How can I do the binding and include the foreign key relationship?

Answer 1

You can fix this a few ways. One way is to try something like this.

public ActionResult AddProduct([Bind(Exclude = 'Category')]Product product) { } 

This tells the model binder to not try to bind the Category (FK property). This is a known issue and the MVC team has already fixed it for RC.

You can also pass in an exclusion list into UpdateModel/TryUpdateModel and any place you add a Bind attribute.