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How do I customize the OutputCache page attribute to change request values?

Assuming I have a page request that looks like

http: // localhost / accounting / products? id = 234

and sometimes it looks like this:

http: // localhost / accounting / products? id = 152

Since product items don't change often, I want each page for a specific product ID to be cached for an hour.

So for the first request the page will be cached for product id = 234 and the subsequent request for product id = 234 within an hour will be fetched from the cache. Next request after 1 hour timed out for product id = 234, new page will be fetched from server not from cache. Etc.

How should I do it?

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3 answers


Ofer Zelig's answer is correct, but since you are using MVC the correct location to add the OutputCache configuration is in action.



[OutputCache(Duration=3600, VaryByParam="id")]
public ActionResult Products(int id)
{
    //
    return View();
}
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Check out VaryByParam .

For example:



<%@ OutputCache Duration="3600" VaryByParam="id" %>

Note. The correct way to do this specifically in MVC (as opposed to web forms) is to assign an action, as Oenning demonstrated.

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Just for reference, if you have multiple parameters to cache, separate them with semicolons:

// Cache 4 hours, by id and latlng
[OutputCache(Duration=60*60*4, VaryByParam="id;lat;lng")]
public async Task<ViewResult> Item(int id, double lat, double lng) . . .
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