public new void OrganisationAttachmentDelete(OrganisationAttachment entity)
        {
            TraceCallEnterEvent.Raise();
              try
              {
            FileDataContext fileDataContext = new FileDataContext();
            string ext = Path.GetExtension(entity.Path).ToLower();
            string fileName = entity.ID.ToString() + ext;
            fileDataContext.OrganisationAttachmentDelete(entity.OrganisationRef, fileName);
            base.OrganisationAttachmentDelete(entity);

            BusinessAuditEvent.Success();
            TraceCallReturnEvent.Raise();
            return;
              }
              catch (Exception ex)
              {
            ExceptionManager.Publish(ex);
            BusinessAuditEvent.Fail(
              new EventParameter("Exception", ex.ToString())
              );
            TraceCallReturnEvent.Raise(false);
            throw;
              }
        }