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8.4

prevent browser from caching image

Asked by esc7 in Web Images, Programming for ASP.NET, .NET Framework 2.x

Tags: prevent, caching, image, browser, from

How do I prevent an image in a web page from being cached by the browser?

I am programatically generating a gif image in my ASP.Net application.  The client types some text and I convert it to an image file.  When the client changes the text and re-submites (replacing the previous image file) the image is not refreshed (only shows old image).  The name of the file on the server does not change because I dont want to save a new file each time the client changes the text (file name is sessionid + extension).

The image is a .net server control.

Any ideas?
[+][-]06/14/07 08:30 PM, ID: 19289006Accepted Solution

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About this solution

Zones: Web Images, Programming for ASP.NET, .NET Framework 2.x
Tags: prevent, caching, image, browser, from
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Solution Provided By: ryancys
Participating Experts: 4
Solution Grade: A
 
[+][-]06/15/07 01:03 AM, ID: 19289912Expert Comment

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[+][-]06/15/07 02:27 AM, ID: 19290226Expert Comment

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[+][-]06/15/07 06:43 AM, ID: 19291753Expert Comment

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