HOW TO: Prevent Caching of web forms by the browser

When you request a web form, ASP.NET processes it on the server and returns it back to the browser. Browsers generally keep cache of web pages they visit to improve performance and reduce network hits. That means when you navigate from one page to another and use Back button of the browser, you are given copy of the web form the browser cache and not from the server. Though this behavior is fine for most of the case in some you need to prevent browser from such caching. For example, you are developing a payment processing page where user enters credit card number and other details. Once the form is submitted it should not be cached on the client side. Pressing Back button should not display the old details like credit card number.

To solve this problem here is a quick solution:


Add above two lines of code in the Page_Load event handler.


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