Caching ChildActions using cache profiles won't work?

Question

I\'m trying to use cache profiles for caching child actions in my mvc application, but I get an exception: Duration must be a positive number.

My web.config looks li

Answer 1

I got around the problem by creating a custom OutputCache attribute, that manually loads the Duration, VarByCustom and VarByParam from the profile:

public class ChildActionOutputCacheAttribute : OutputCacheAttribute
{
    public ChildActionOutputCacheAttribute(string cacheProfile)
    {
        var settings = (OutputCacheSettingsSection)WebConfigurationManager.GetSection("system.web/caching/outputCacheSettings");
        var profile = settings.OutputCacheProfiles[cacheProfile];
        Duration = profile.Duration;
        VaryByParam = profile.VaryByParam;
        VaryByCustom = profile.VaryByCustom;
    }
}

The advantage of this approach is that you get to still keep all your profiles in just one place in the web.config.