Manually clear ASP.NET server cache for a single application/web site?

Question

How can I manually clear ASP.NET server cache (IIS 7) on a given application/website, like what can be done in IE to clear browser cache for a given domain?

Would you be able to mark the answer as a real answer? Thanks :) — benmccallum, Feb 19 '16 at 04:55

score 49 · Answer 1 · edited Dec 24 '15 at 13:12

49

Use the following to remove all objects from the cache

IDictionaryEnumerator enumerator = HttpContext.Current.Cache.GetEnumerator();

while (enumerator.MoveNext())
{

    HttpContext.Current.Cache.Remove((string)enumerator.Key);

}

Also, it is a bit of a sledgehammer option but you can restart the entire application as follows:

System.Web.HttpRuntime.UnloadAppDomain();

edited Dec 24 '15 at 13:12

benmccallum

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answered Mar 11 '11 at 16:19

NakedBrunch

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I've never seen that method on httpruntime before – Chris Marisic Mar 11 '11 at 16:22
@Chris Mansic: It's there. I've used it before. Take a look here at MSDN: http://msdn.microsoft.com/en-us/library/system.web.httpruntime.unloadappdomain.aspx – NakedBrunch Mar 11 '11 at 16:24
2

Need to cast enumerator.Key to a string since Remove takes string and all keys are strings – GameSalutes May 28 '15 at 19:14

score 12 · Answer 2 · edited Nov 04 '20 at 14:31

12

I had the same problem, and recycling the application pool helped me. All my caches immediately reloaded as I wanted.

Ways of recycling the application pool are described here.

edited Nov 04 '20 at 14:31

Abel

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answered May 27 '11 at 14:30

Niklas Wulff

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You should add a path on _How to recycling the Pool_. Anyway, could find [here](https://learn.microsoft.com/en-us/iis/configuration/system.applicationhost/applicationpools/add/recycling/) – fiskolin May 05 '20 at 17:53

Manually clear ASP.NET server cache for a single application/web site?

2 Answers2

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