CustomDefaultPlaceHolderProvider for Episerver Forms, build your own Summary in Episerver Forms EmailActor

CustomDefaultPlaceHolderProvider.cs

using EPiServer.Forms.Core;
using EPiServer.Forms.Core.Internal;
using EPiServer.Forms.Core.Models;
using EPiServer.Forms.Core.Models.Internal;
using EPiServer.ServiceLocation;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Gosso.EPiServerTestSite.Business
{
    public class CustomDefaultPlaceHolderProvider : DefaultPlaceHolderProvider, IPlaceHolderProvider
    {
        private readonly Injected<IFormRepository> _formRepository;

        public new IEnumerable<PlaceHolder> ExtraPlaceHolders
        {
            get
            {
                return new PlaceHolder[] { new PlaceHolder("friendlysummary", string.Empty) };
            }
        }

        public new IEnumerable<PlaceHolder> ProcessPlaceHolders(IEnumerable<PlaceHolder> availablePlaceHolders, FormIdentity formIden, HttpRequestBase requestBase, Submission submissionData, bool performHtmlEncode)
        {
            IEnumerable<PlaceHolder> plh = base.ProcessPlaceHolders(availablePlaceHolders, formIden, requestBase, submissionData, performHtmlEncode);
            Type[] excludedElementBlockTypes = new Type[] { typeof(IExcludeInSubmission) };
            IEnumerable<FriendlyNameInfo> friendlyNameInfos = this._formRepository.Service.GetFriendlyNameInfos(formIden, excludedElementBlockTypes);

            foreach (PlaceHolder holder in availablePlaceHolders)
            {
                if (holder.Key == "friendlysummary")
                {
                    holder.Value = this.GetFriendlySummaryTextWithoutHiddenFields(friendlyNameInfos, performHtmlEncode ? "<br />" : Environment.NewLine, requestBase, submissionData);
                }
            }

            return plh;
        }
        
        //// Overriding default SummaryText
        //protected new string GetFriendlySummaryText(IEnumerable<FriendlyNameInfo> friendlyNames, string lineSeparator, HttpRequestBase requestBase, Submission submissionData)
        //{
        //    //IEnumerable<FriendlyNameInfo> names = friendlyNames.Where(u => !u.FriendlyName.ToLowerInvariant().StartsWith("hidden")).ToList();//remove hidden fields
        //    var str = "Hijacked! <br/>" + base.GetFriendlySummaryText(friendlyNames, lineSeparator, requestBase, submissionData);
        //    return str;
        //}

        protected string GetFriendlySummaryTextWithoutHiddenFields(IEnumerable<FriendlyNameInfo> friendlyNames, string lineSeparator, HttpRequestBase requestBase, Submission submissionData)
        {
            IEnumerable<FriendlyNameInfo> names = friendlyNames.Where(u => !u.FriendlyName.ToLowerInvariant().StartsWith("hidden")).ToList();//remove hidden fields
            var str = "Hidden fields is not shown <br/>" + base.GetFriendlySummaryText(names, lineSeparator, requestBase, submissionData);
            return str;
        }
    }
}