Caching not Working at Server with Insert and delete data?

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C#

ASP.NET

<%@ OutputCache Duration="60" Location="ServerandClient" VaryByParam="*" %>

public void clearcache()
{
HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
HttpContext.Current.Response.Cache.SetValidUntilExpires(false);
HttpContext.Current.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.Cache.SetNoStore();
HttpContext.Current.Response.Cache.SetExpires(DateTime.Now.AddSeconds(-60));

}
I used above code to implement caching at local system.Its work fine.
But when site host at server with same code,I can get data fast but when i changed the data like insert or delete its not reflect with UI.(Need to refresh page to see changes)
What should i do?????????