Extract tempdata or viewdata value in javascript?

Question

how do i extract the value of tempdata or viewdata in javascript? This returns "" even though there is a value being set. Is the syntax incorrect? I've tried without the '' as well as casting to string. Nothing seems to work...

var message = '@TempData["Message"]';

Answer 1

This returns "" even though there is a value being set.

Are you sure you have some value in TempData? I think you made some mistake in setting its value then.

Check this and then make sure you are doing it correctly.

• TempData is meant to be a very short-lived instance, and you should only use it during the current and the subsequent requests only.
• Since TempData works this way, you need to know for sure what the next request will be, and redirecting to another view is the only time you can guarantee this.
• Therefore, the only scenario where using TempData will reliably work is when you are redirecting.This is because a redirect kills the current request , then creates a new request on the server to serve the redirected view.
• Simply said, Asp.Net MVC TempData dictionary is used to share data between controller actions.
• The value of TempData persists until it is read or until the current user’s session times out.
• By default, the TempData saves its content to the session state.
• TempData values are marked for deletion when you read them. At the end of the request, any marked values are deleted.
• The benefit is that if you have a chain of multiple redirections it won’t cause TempData to be emptied the values will still be there until you actually use them, then they clear up after themselves automatically.