Question

I would like to create a custom action filter attribute that adds a value in the HttpContext items that would be accessible during model binding.

I have tried to add it in the OnActionExecuting but it that seems the modelbinding is exectued before the filter.

Do you have any idea how I could do it? Maybe there’s a method in the modelbinder that I could override that will be fired after the filter and use the value injected by my filter.

What I want to do, is to inject a validation context (the library I use for validation supports context, it is nvalid.net (www.nvalid.net)

I would like to be able to place an attribute such as

[ValidationContext("Prevalidation")]

on my actionresult method, so that the validation that occurs in my custom model binder could know which context to use when doing the Validation.

That’s why I can’t simply make a custom model binder.

Answer 1

Why not simply writing a custom model binder and work in the BindModel method?