In ASP.NET MVC, ViewBag, ViewData, and TempData are mechanisms for passing data from controllers to views, but they have some differences in terms of usage, lifetime, and scope.
ViewBag
ViewData
TempData
Conclusion
- ViewBag and ViewData are both used for passing data from a controller to a view for the current request, and they have a short lifetime within that request.
- TempData is used for passing data between different requests, typically during redirects, and it has a slightly longer lifetime that spans the current and the next request.
- If you need to pass data between controller actions within the same request, either ViewBag or ViewData can be used, but ViewBag offers a more concise syntax. If you need to pass data between requests, TempData is the appropriate choice.