Extended ToString Method based on reflection

ToStringExtension.cs

using System.Linq;
using System.Text;

namespace TicketSystemTests
{
    public static class ToStringExtension
    {
        public static string ToStringReflected(this object obj)
        {
            var valuesDict =
                obj.GetType()
                    .GetProperties()
                    .ToDictionary(propertyInfo => propertyInfo.Name,
                        propertyInfo =>
                            propertyInfo.GetValue(obj) != null ? propertyInfo.GetValue(obj).ToString() : string.Empty);
            var sb = new StringBuilder();
            foreach (var entry in valuesDict)
            {
                //C# 6.0 version
                //sb.Append($"{entry.Key}: {entry.Value}");

                //regular string format version
                sb.AppendFormat("{0}: {1}\n", entry.Key, entry.Value);
            }
            return sb.ToString();
        }
    }
}