Grabbing all exception messages from inner exceptions

exception-msgs.cs

    using System;
    using System.Text;

    public static class ExceptionExtensions
    {
        public static string GetAllMessages(this Exception ex)
        {
            var message = new StringBuilder();
            for (var e = ex; e != null; e = e.InnerException)
                message.AppendLine(e.Message);

            return message.ToString();
        }
    }