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

That works for me.

public class ChildActionOutputCacheAttribute : OutputCacheAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        if (filterContext.IsChildAction && !string.IsNullOrWhiteSpace(CacheProfile))
        {
            lock (this.GetType())
            {
                if (!string.IsNullOrWhiteSpace(CacheProfile))
                {
                    // OutputCacheAttribute for child actions only supports
                    // Duration, VaryByCustom, and VaryByParam values.
                    var outputCache = (OutputCacheSettingsSection)WebConfigurationManager.GetSection("system.web/caching/outputCacheSettings");
                    var profile = outputCache.OutputCacheProfiles[CacheProfile];
                    if (profile.Enabled)
                    {
                        Duration = profile.Duration > 0 ? profile.Duration : Duration;
                        VaryByCustom = string.IsNullOrWhiteSpace(profile.VaryByCustom)
                            ? VaryByCustom : profile.VaryByCustom;
                        VaryByParam = string.IsNullOrWhiteSpace(profile.VaryByParam)
                            ? VaryByParam : profile.VaryByParam;
                    }
                    CacheProfile = null;
                }
            }
        }
        base.OnActionExecuting(filterContext);
    }
}