WHAT IS ABSOLUTE AND SLIDING EXPIRATION IN .NET?

Awadhendra Tiwari

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  1. Awadhendra Tiwari

    Post:510

    Points:2550
    What is Absolute and Sliding expiration in .NET?

    Absolute and sliding expiration are two Time based expiration strategies.

    Absolute Expiration: Cache in this case expires at a fixed specified date or time.
    Example: Cache. Insert("ABC", ds, null, DateTime.Now.AddMinutes(1), Cache.NoSlidingExpiration);
    The cache is set to expire exactly two minutes after the user has retrieved the data.

    Sliding Expiration: the cache duration increases in this case by the specified sliding expiration value every time the page is requested. More a page is requested it will remain in cache, whereas a less requested page will not remain in cache.
    Example: Cache.Insert("ABC", ds, null, Cache.NoAbsoluteExpiration, TimeSpan.FromMinutes(1));

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