What are the best practices for using TempData in ASP.NET?

What are the best practices for using TempData in ASP.NET?

TempData is used to store data temporarily, typically for redirect scenarios. Best practices include using it sparingly, ensuring data is not too large, and clearing it after use.

Can you explain how TempData works during redirects?

Sure! TempData uses session storage to persist data across requests. When you redirect, the data is available for the next request and is cleared afterward.

What are some common pitfalls to avoid with TempData?

Common pitfalls include relying on TempData for critical data, not checking if it exists before accessing, and forgetting to clear it.

Are there alternatives to TempData?

Yes, alternatives include using ViewBag for short-lived data, or session state for longer-lived data, depending on your needs.

How can I test TempData in my application?

You can test TempData by creating unit tests that simulate controller actions and check if the TempData values are set and cleared as expected.