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Hi every one.
I cached my image folder in IIS(http headers).
But i have 2 pics in this folder that in any time i should show one of them. and these pics are in a Gridview and i change their visible by Sqldata source.

so i want 2 pics in this folder to not cached. so i dont set (Enable content expiration) for these 2 pics manualy and this check box is not checked for these 2pics.
Also i have this code in my page too :


But in my case , these 2 pics are cached too, and when i changed their visible, there is no change in website till i use CTRL+F5 .

How can i handle this case and make these 2 pics not cached?
Thanks in advance.

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