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If I have a form/view that will display 1 or more partial views based on user responses. Where do I need to place the AntiForgeryToken? In the parent view? In the partial views? Both?

Currently, I have it in the partial views, but we are occasionally getting an error:

Message:A required anti-forgery token was not supplied or was invalid.

The error is reported in production only, we are unable to reproduce it on developer machines (typical).

My theory is that when multiple partial views are represented a mismatch of tokens occurs and the error is reported. My thinking is to move the token to the main/parent view.

Am I on the right track? Anybody had to deal with something similar?

1 solution

In your View(assuming razor), use the HTML helper for ValidateAntiForgeryToken inside the form:

@using (Html.BeginForm()) {

Then in the HttpPost method for the controller action, decorate it with the ValidateAntiForgeryToken attribute:

public ActionResult Create(ModelType modelObj)
    if (ModelState.IsValid)

    return View(modelObj);
littleGreenDude 12-Mar-14 15:11pm
Thank you for the response. Yes, the razor assumption is correct. At the basic level I understand what you are saying. My question is more driven by what is the proper approach when dealing with partial views. Is there a token for each partial view, or the container as a whole?

Currently our form contains divs for 5 partial views. The user is responding to a list of certification questions, and based on responses 1 or more divs/partial views are displayed. Each partial view is accepted/declined (button select) and the form as a whole is submitted (button). Currently, each partial view has its own AntiForgeryToken and corresponding token validation in the controller (in the manner as you indicated).

With this approach we periodically see the System.Web.Mvc.HttpAntiForgeryException

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