Postback

A "Postback" is an action taken by an interactive webpage, when the entire page and its contents are sent to the server for processing some information and then, the server posts the same page back to the browser.

This is done to verify passwords for logging in, process an on-line order form, or other such tasks that a client computer cannot do on its own. This is not to be confused with refresh or back actions taken by the buttons on the browser. That's why these last two actions do not satisfy the condition (If PostBack) that exists in some languages.

ee also

*Ajax (programming)
*ASP.NET