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I am trying to code an app for work where our clients can edit certain fields. When they click edit, the code will lock the data to be editted. And when they click save the data will unlock. But I am having trouble deciding if I can unlock the data when they click elsewhere, go to another page or site, or even close the browser.
What’s a good way to decide if the user has left the edit page?
(We are using C# .NET 3.5 and JQuery and a SQL Server 2005 DB).
If you really must use pessimistic locking you could add check in Session_End and unlock all locks that this user set in current session. Use onUserExit jQuery plugin to end session if user closes the browser window or goes on another site, here is the example :
https://stackoverflow.com/a/10481972/351383