Umbraco prevalues cache

RefreshPreVal.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Umbraco.Core;
using Umbraco.Core.Logging;

public class RefreshPreVal : ApplicationEventHandler
{
    protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
    {
        Umbraco.Core.Services.ContentService.Published += ContentService_Published;
    }

    void ContentService_Published(Umbraco.Core.Publishing.IPublishingStrategy sender, Umbraco.Core.Events.PublishEventArgs<Umbraco.Core.Models.IContent> e)
    {
        var contentNode = e.PublishedEntities.ToList();

        if (contentNode.Any(x => x.ContentType.Alias == "person"))
        {
            //Refresh Forms prevalues
            ApplicationContext.Current.ApplicationCache.RuntimeCache.ClearCacheByKeySearch("Forms.PreValues.");
        }
    }
}