Force update cache when using OutputCache

Question

I am using ASP.NET Web Forms app with OutputCache set to xxx seconds. How can I invalidate cache when it is required to do? Specifically, I want to check if data in database is modified and if true, then force cache update. Is it possible and how to achieve that? So far I have added:

<%@ OutputCache Duration="24000" VaryByParam="myId" location="Server"%>

Now the problem is that Page_init is not fired with OutputCache and I dont know how to force cache update.

Any ideas are welcome!

Thanks!

This may be of interest to you: forums.asp.net/t/991603.aspx?+OutputCache+SqlDependency — NoAlias
– NoAlias, Commented May 23, 2017 at 14:18

Hamed Bohlouli · Accepted Answer · 2019-01-26 15:23:57Z

2

Try this

var urlToRemove = Url.Action("AjaxHtmlOutputMethod", "Controller");
HttpResponse.RemoveOutputCacheItem(urlToRemove);

answered Jan 26, 2019 at 15:23

Hamed Bohlouli

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