cache a list of data asp.net c#

Question

I want to implement caching of a list pulled from the db. I've had a look at this:

I have this in my code:

var addresses =  repository.GetAllAddresses();//returns IQueryable<string>

using the answer in the question above how can i cache this?, I have created the class CacheExtensions, but not sure where to go from there.

Darin Dimitrov · Accepted Answer · 2011-02-27 21:45:37Z

4

Once you have the extension method it's a simple matter of using it (don't forget to bring the static class you have defined the GetOrStore method into scope by adding a using directive to the namespace containing it or you won't be able to see the GetOrStore<T> extension method):

IEnumerable<string> addresses = HttpRuntime
    .Cache
    .GetOrStore<IEnumerable<string>>(
        "addresses", 
        () => repository.GetAllAddresses().ToArray()
);

Things to note:

We are using "addresses" as a cache key, so the result will be stored under this key.
We are calling .ToArray() on the IQueryable<string> in order to eagerly fetch the addresses and store the results into the cache and not the query.

answered Feb 27, 2011 at 21:45

Darin Dimitrov

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