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what is the purpose of postback?

Answer Posted / rahul sriram

Postback is a propery in which it is alerted to the
webserver. For a instance if there is a submit button, and
when the user click the button the particular page will not
be sent to the webserver which was triggered by the user.
Instead of that, the postback propery ensures an alert
message to the webserver that if the submit button is
clicked the page should be fired.

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