c# - What happens when I add item to Cache with TimeSpan.Zero as Expiration? -



c# - What happens when I add item to Cache with TimeSpan.Zero as Expiration? -

in web services app, found code adds item cache:

system.web.caching.cache.insert(cachekey, item, null, cache.noabsoluteexpiration, timespan.zero, cacheitempriority.normal, callback);

in case, seems there no absolute expiration , slidingexpiration beingness set timespan.zero, me means items should expire immediately.

at same time, i've never seen expire, also, not patient plenty sit down there , wait.

so happens in case? there default kicks in when slidingexpiration zero? or never expire

this equal passing cache.noslidingexpiration, yes, item never expire (except due low amount of available memory).

the static fellow member cache.noslidingexpiration initialized timespan.zero. cache.noabsoluteexpiration initialized timespan.maxvalue.

c# asp.net web-services caching

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