I have an ASP.NET 3.5 page with a gridview databound to a generic list of objects. The purpose of this page is to show the user a list of items they’re responsible for so they can select one and go to the maintenance page to see the details of that item.
I have the AutoGenerateSelectButton property set to True. I have no problem when the user immediately selects one of the items (firing the .SelectedIndexchanged event, I do a little processing and Response.Redirect them to the appropriate page).
However, if I wait a few minutes, then hit the Select, I get Cannot display the webpage as if I were disconnected from the net. No messages get sent to the application’s log file (debugging messages that should indicate the user selected a particular item and that a redirect is about to happen) so there’s nothing for me to trap/debug/fix.
I tried going into the web.config and added
"<sessionState timeout="60"></sessionState>"
in hopes that the timeout would go to an hour (users will frequently let the app sit on their screens for quite a while) but that doesn’t seem to have worked.
Where else can I look?
Try setting EnableViewStateMac to falseon the page to see if it is related to this.