Sometimes in a web application you want to time the user’s input. Suppose you have a one textbox web form and you want to set an inactivity timer of 1200 seconds which is equal to 20 minutes. Every time the user adds or modifies the textbox the timer is reset to 0. The following pictures tell the story of my implementation of such a server-side timer in ASP .NET using an AJAX timer object.
Numerical Explorations 