ASP.NET MVC: reassign TempData?

I think you're looking for TempData.Keep().

TempData only persists within the context of the current request. If you are returning content to the client, and then the client is posting back, you can't use that. Your options are pretty standard, and basically only as you described: Use a form variable (as you stated - and I'm guessing if it's a change password field then it may be sensitive) Use a session variable (as you stated also!) Persist the variable elsewhere in your application - custom database field or user profile or similar Personally I'd go with a session provider, or try to avoid returning content to the client with the immediate post back altogether, if possible...

If myVariable is not a critical information security you can persit it to dden field (change the view) and post it to next action request.

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