What is the benefit of Extensible Output Caching in ASP.NET 4.0?
Cache object is stored on the Web Server. Extensible Output Caching empowers you to store your cache objects on other machines such as other local disks, remote disks and cloud storage locations.
Benefit: You can now decide what to be cached on your busy Web Server, and what to cache on other locations.
How to do it?
1. Create a class that derives from the new System.Web.Caching.OutputCacheProvider
2. Set the following in the web.config file, under the new providers sub section:
<caching>
<outputCache defaultProvider="AspNetInternalProvider">
<providers> <add name="DiskCache" type="Test.OutputCacheEx.DiskOutputCacheProvider, DiskCacheProvider"/> </providers>
</outputCache>
</caching>
3. Set the following for the control:
<%@ OutputCache Duration="60" VaryByParam="None" providerName="DiskCache" %>
4. Set the following per request:
This is to be added in global.asax
C# Example:
public override string GetOutputCacheProviderName(HttpContext context)
{
if (context.Request.Path.EndsWith("Advanced.aspx"))
return "DiskCache";
else
return base.GetOutputCacheProviderName(context);
}
Extensible Output Caching allows to intelligently identifying which components of a web page should be cached. For example, you can decide to cache the top five pages of your website.
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