Npgsql.NpgsqlException.GetObjectData C# (CSharp) Method

        public override void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            base.GetObjectData(info, context);

            // Add custom data, in this case the list of errors when serializing.
            // Thanks Robert Chartier for info: http://www.15seconds.com/issue/020903.htm

            //use the info object to add the items you want serialized
            info.AddValue("errors", errors, typeof (IList));
        }