I want to display a message to users like below, after 20 mins of inactivity.
"You have been logged out, please login again"
Specifically, for example, a user logs in, after 20 mins inactivity, s/he clicks any links on the page, s/he will be redirected to the Login page via the built-in FormAuthModule, and the message above will be displayed on the Login page.
Considerations
1) It is forms auth time out (The Forms element), not session time out (SessionState element)
2) Ideally, I don't want to change the built-in Form Auth's redirection logic, to use JavaScript.
3) Forms Auth module only modifies forms auth ticket after half of period. Please find relevant article below:
"Forms auth tickets aren't actually updated until half of the time goes by. So if you have timeouts set to an hour and send in one request 25 minutes into it, the session is reset to an hour timeout, the forms auth ticket isnt touched and expires in 35 minutes!"
How can I handle forms authentication timeout exceptions in ASP.NET?
Updates: 4) session state is not used in the project.
Problems:
1) This is a legacy project, I want to minimise changes to existing code.
My Questions:
1) I cannot find out an event for Forms auth time out, below is for authenticating the current request. https://msdn.microsoft.com/en-us/library/467h1csc%28v=vs.140%29.aspx?f=255&MSPPError=-2147217396
2) What options I have to implement this?
Any idea
