c# - "The anti-forgery cookie token and form field token do not match" on page with ViewModel and two forms -

c# - "The anti-forgery cookie token and form field token do not match" on page with ViewModel and two forms -

in mvc4 app running on mono error:

the anti-forgery cookie token , form field token not match

on "login , register" page. page has loginorregisterviewmodel looks follows:

public class loginorregisterviewmodel { public loginmodel login { get; set; } public registermodel register { get; set; } }

which gets passed page on request.

there 2 html.beginforms() on page, login-form , register-form. first calls login action on controller, sec register action. both actions have validateantiforgerytoken attribute. when form submitted respectively login or register obtained loginorregisterviewmodel.

when page loaded , registered user tries login after tim (few hours?) "login , register" page shows, when login form submitted error above shows until root page refreshed.

i have included machine key web.config , have added html.antiforgerytoken() both forms. have suspicion error might have 2 forms , view model.

does know how error can fixed? thanks.

mvc best coding standard, practice separation of code concern.

create 2 diffrent model 1 loginviewmodel , 2 register view model. create seperate partial view both login , register , access via partial or renderaction keyword.

if putting @html.antiforgerytoken() on html form then, same way need validate anti-forgery on controller side method writing attribute [validateantiforgerytoken()] .

html helper generate unique token within form like,

<input name="__requestverificationtoken" type="hidden" value="4dvpvqivpxnekzyv1dcjen1rmtmdj9fq2">

for each of form unique anti-forgery token generate and, resolve confliction.

let me know in case still facing difficulty.

c# asp.net-mvc-4 mono antiforgerytoken