Refactored ObjectDumper from @eiximenis

ObjectDumper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using Dict = System.Collections.Generic.Dictionary<string, System.Delegate>;
using Pair = System.Collections.Generic.KeyValuePair<string, string>;

namespace ObjectDumper
{
    public class ObjectDumper<T> where T: class 
    {
        private readonly Dict templates = new Dict();

        public void AddTemplateFor<TR>(Expression<Func<T, TR>> propExp, Func<TR, string> template)
        {
            templates.Add(((MemberExpression) propExp.Body).Member.Name, template);
        }

        public IEnumerable<Pair> Dump(T data)
        {
            if (data == null) yield break;

            foreach (var property in data.GetType().GetProperties().Where(p => p.CanRead).OrderBy(p=>p.Name)) {
                var valueProp = property.GetValue(data);
                Delegate template;
                var value = templates.TryGetValue(property.Name, out template)
                    ? template.DynamicInvoke(valueProp) as string
                    : Convert.ToString(valueProp);
                yield return new Pair(property.Name, value);
            }
        }
    }
}