private string allWorkshopsData()
        {
            XMLBuilder         allWorkshopsXml = new XMLBuilder("workshop");
            WorkshopRepository repository      = _catalogApp.workshopManager.getWorkshopRepository();

            foreach (var workshop in repository)
            {
                allWorkshopsXml.addAttribute("name", workshop.getName());
                allWorkshopsXml.addAttribute("status", workshop.getStatus());
                allWorkshopsXml.addAttribute("duration", workshop.getDurationAsString());
            }

            var rowData = allWorkshopsXml.ToString();

            return(rowData);
        }
 public WorkshopManager()
 {
     Repository = new WorkshopRepository();
 }