/// <summary>
        /// Gets the field.
        /// </summary>
        /// <param name="field">The field.</param>
        /// <param name="config">The config.</param>
        /// <param name="context">The context.</param>
        /// <returns>System.Object.</returns>
        public override object GetField(Sitecore.Data.Fields.Field field, SitecoreFieldConfiguration config, SitecoreDataMappingContext context)
        {
            var data = field.GetBlobStream();

            MemoryStream stream = null;

            if (data.CanRead)
            {
                 stream = new MemoryStream();

                byte[] buffer = new byte[2048];
                int bytesRead;


                while ((bytesRead = data.Read(buffer, 0, buffer.Length)) > 0)
                {
                    stream.Write(buffer, 0, bytesRead);
                }

                data.Close();

                stream.Seek(0, SeekOrigin.Begin);
            }
            return stream;
        }
 /// <summary>
 /// Gets the field.
 /// </summary>
 /// <param name="field">The field.</param>
 /// <param name="config">The config.</param>
 /// <param name="context">The context.</param>
 /// <returns>System.Object.</returns>
 public override object GetField(Sitecore.Data.Fields.Field field, SitecoreFieldConfiguration config, SitecoreDataMappingContext context)
 {
     return field.GetBlobStream();          
 }