How to Invalidate cache data manually in ASP.Net WebForm

Question

Suppose I cache data as per below for 10 minutes:

cache.Insert(
        key, 
        dt, 
        null, 
        new TimeSpan(0, 10, 0),
        Cache.NoSlidingExpiration,
        CacheItemPriority.High, 
        null);

How do I invalidate the cache before 10 minutes?

Mehdi Souregi · Accepted Answer · 2014-06-16 10:40:44Z

2

public void ClearApplicationCache()
        {
            List<string> keys = new List<string>();

            IDictionaryEnumerator enumerator = Cache.GetEnumerator();

            while (enumerator.MoveNext())
            {
                keys.Add(enumerator.Key.ToString());
            }

            for (int i = 0; i < keys.Count; i++)
            {
                Cache.Remove(keys[i]);
            }
        }

answered Jun 16, 2014 at 10:40

Mehdi Souregi

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Comments

Lloyd · Accepted Answer · 2014-06-16 10:32:56Z

0

Easiest option available to you - remove it:

cache.Remove(key);

answered Jun 16, 2014 at 10:32

Lloyd

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1 Comment

Lloyd Over a year ago

@Thomas Ahh yes I didn't see that in the title, though you should make it clearer in the body. However there's no way to do it manually I'm afraid, not without again writing some kind of page that lets you.

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