Asynchronous and synchronous postback

Question

Differeniate asynchronous postback and synchronous postback?

Answer 1

The difference between asynchronous and synchronous postback are as follows:

Asynchronous postback implements only single postback at a time, i.e., if we have two buttons performing asynchronous postback, actions will be executed one by one; while synchronous postback performs all actions at once.

Asynchronous postback only alters the update panel which raises postback; while, synchronous postback alter the whole page.

Asynchronous postback renders only necessary part of a page; while, synchronous postback renders the whole page for any postback.