public CategoriesAppService(IRepository <Category> categoryRepository, ICategoriesExcelExporter categoryExcelExporter
                             , IRepository <ItemClass> itemclassRepository)
 {
     _categoryRepository    = categoryRepository;
     _categoryExcelExporter = categoryExcelExporter;
     _itemclassRepository   = itemclassRepository;
 }
 public CategoriesAppService(IRepository <Category> categoryRepository, ICategoriesExcelExporter categoriesExcelExporter)
 {
     _categoryRepository      = categoryRepository;
     _categoriesExcelExporter = categoriesExcelExporter;
 }