can you define autopostback and postback and it's differences and which web server control support autopostback and postback and also the difference between postback and callback?

<ul> <li> postback: the page performs a POST request to itself</li> <li> autopostback: a postback is performed automatically, for example when the selected value of a dropdown changes</li> <li> callback: a method which is invoked when a certain event occurs such as clicking on a button. It also could have another meaning that a page performs a request back to the server (such as an AJAX request).</li> </ul>

What is the difference between postback, autopostback and callback?

1 Answers

postback: the page performs a POST request to itself
autopostback: a postback is performed automatically, for example when the selected value of a dropdown changes
callback: a method which is invoked when a certain event occurs such as clicking on a button. It also could have another meaning that a page performs a request back to the server (such as an AJAX request).