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POWhat are some possible reasons for objects stored in the ASP.NET Cache never expiring, despite having a sliding expiration time set?
 

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  1. POWhat are some possible reasons for objects stored in the ASP.NET Cache never expiring, despite having a sliding expiration time set?
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    <p>I've cached a value using the ASP.NET Cache, with the following code:</p> <pre><code>Cache.Insert("TEST_VALUE", 150, null, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(120)); </code></pre> <p>As I understand it, this should mean that if nothing accesses that object for 120 seconds, it will expire and return null.</p> <p>However, if after 10 minutes I run a page which writes out that value from the cache, it's still there (and indeed still after a whole hour). I know there's nothing else accessing it, because this is all on a local server on my machine.</p> <p>Can anyone tell me why these values aren't getting purged from the cache?</p> <hr> <p>Thanks, I see what you mean, but my HttpModule is checking the type of request before inserting anything into the cache, so it will only occur on form uploads.</p> <p>I've tried what you suggested anyway, and the breakpoint never gets hit when I am refreshing the page that displays the cached value. </p> <p>I am assuming that even reading from the cache should extend the lifespan of the object, so I am leaving it 5-10 minutes before refreshing the 'debugging' page, but the value is still there!</p>
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