问题
How to set a pop up message box saying... "please end your session and start again" in my asp.net webform?
回答1:
My first shoot is JS script with simple time counter. You should set max session time value and decrease it every one second - if == 0 then popup some message. When you reload page - counter will be reseted and start counting again.
Good luck !
hsz
来源：https://stackoverflow.com/questions/1838760/popup-while-session-timeout