public string SaveCategoryManager(Category aCategory)
        {
            checkCategoryNameExist = aCategoryGateway.IsExistCategoryName(aCategory);

            if (checkCategoryNameExist == true)
            {
                return("Category Name is Already Exist");
            }


            int rowAffect = aCategoryGateway.SaveCategory(aCategory);

            if (rowAffect > 0)
            {
                return("Successfully Insert");
            }
            return("Failed To Save");
        }