Clearing Session In Global Application_Error?

May 10, 2010

Whenever an unhandled exception occurs on our site, I want to:

Send a notification email Clear the user's session Send the user to a error page ("Sorry, a problem occurred...")

The first and last I've had working for a long time but the second is causing me some issues. My Global.asax.vb includes:


When I run a debug, I can see the session being cleared, but then on the next page the session is back again!

I eventually found a reference that suggests that changes to session will not be saved unless Server.ClearError is called. Unfortunately, if I add this (just below the line that sets "ex") then the CustomErrors redirect doesn't seem to kick in and I'm left with a blank page?

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