protected void UpdateAccept_ServerClick(object sender, EventArgs e)
        {
            Catalogue productToUpdate = new Catalogue(Convert.ToInt32(Session["PRODUCTID"]), updateName.Value, updateDescription.Value, Convert.ToInt32(updatePrice.Value), Convert.ToInt32(updateAmount.Value));

            resultMessage.InnerText = menuService.ChangeProductCharacteristicsService(productToUpdate);
            Response.Redirect("MenuAdministration.aspx");
        }