TempData and ViewData die pretty quickly

StackOverflow https://stackoverflow.com/questions/8172129

  •  03-03-2021
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Question

Is there a way that I can store variables for long periods of time? My users will be leaving their windows open for extended periods of time (Up to a couple (3) of hours). If they do that, then there is a chance that the values will become null. If am correct, ViewData goes null as soon as the view is loaded. What would I do that?

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Solution

Your best bet would be to use Session State. Or, if your users are authenticating somehow, persist the information relative to the account in a database somewhere.

If you want to use session, you can use something like this in a controller's action method:

Session["Key"] = somevalue;

Now, session state dies eventually as well, such as when the user closes their browser, or has been inactive for a while. The default is 20 minutes. If you want to change this, modify the timeout attribute under the sessionState configuration element of your web.config.

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