TempData
TempData is an ASP.NET Core temporary-data dictionary for storing values across requests, commonly through cookies.
Pro ASP.NET Core 7, Tenth Edition
The TempData property exposes the controller or Razor view's temporary request-to-request data dictionary.
- How it is used
- Carries temporary values across a redirect so the next controller view or Razor Page can display them.
- How deep it goes
- Explains dictionary writes, view reads, storage choice, and deletion timing through a worked redirect; it does not detail storage configuration.
- Examples
- Uses a cube-result form, redirected form-results tables, and a related-data creation flow that preserves an unfinished edit.
- What you can do after
- Apply it via ASP.NET Core TempData to pass simple or serialized values to a redirected view or page.
Read how Pro ASP.NET Core 7, Tenth Edition explains TempData →
ASP.NET Core in Action, 3e
TempData is an ASP.NET Core temporary-data mechanism that stores small values for retrieval during a subsequent request, commonly using cookies.
- How it is used
- Carries small, short-lived values through a redirect, especially in the POST-REDIRECT-GET pattern.
- How deep it goes
- Defines dictionary behavior, request lifetime, default storage, and alternatives but does not provide implementation code.
- Examples
- Uses an e-commerce checkout redirect and contrasts TempData with PageModel properties and ViewData.
- What you can do after
- Apply it via ASP.NET Core's TempData mechanism when a redirect must carry a small temporary value.
Related concepts
- ViewBagcontrasts with · ViewBag is a dynamic ASP.NET Core MVC property bag for passing unstructured data from a controller or view component to a view.
- http redirectuses · An HTTP redirect is a response that instructs a client to request or display a resource at a different location.
- post-redirect-getuses · POST-Redirect-GET is a web interaction pattern in which a form submission is followed by a redirect to a result URL retrieved with GET.
- cookieuses · An HTTP cookie is a small piece of data that a server asks a user agent to store and return with subsequent requests within its scope.
- Mapkind of · A map is an associative data structure that stores key-value pairs and supports retrieving values by key.
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