InsertCustomDataRenderTask.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Compilation;
//using NewsletterStudio.Model;
using NewsletterStudio.Bll;
using NewsletterStudio.Core.Model;

namespace NewsletterStudio.Services.RenderTasks.Tasks
{
    public class InsertCustomDataRenderTask : RenderTask
    {
        private EmailTrackingItem _trackingItem;

        public override void ProcessPreRender(RenderResult renderResult, RenderTaskParameters parameters)
        {
            
        }
        public override void ProcessUniqueItem(RenderResult renderResult, RenderTaskUniqueItemParameters parameters)
        {
            // If no custom data is includded, lets just ignore this.
            if (!ConfigManager.NewsletterStudio.ActivateCustomDataCollection)
                return;

            _trackingItem = parameters.EmailTrackingItem;

            Regex regex = new Regex(@"\[#([^]]*)\]");
            renderResult.MessageBody = regex.Replace(renderResult.MessageBody, GetCustomData);
        }

        private string GetCustomData(Match match)
        {
            string collectionKey = match.Groups[1].Value;

            if (_trackingItem.Data.ContainsKey(collectionKey))
                return _trackingItem.Data[collectionKey].ToString();

            return string.Empty;

        }
    }
}