Editor.Services.PageServices.GetPageelementByPageelementID C# (CSharp) Method

        public PageElementDTO GetPageelementByPageelementID(int PageelementID)
        {
            using (ISession session = HibernateHelper.GetSession().OpenSession()) {
                using (ITransaction transaction = session.BeginTransaction()) {
                    try {
                        PageElement pel = new PageElement();
                        pel = HibernateHelper.SelectIstance<PageElement>(session, new string[] { "PageElementid" }, new object[] { PageelementID }, new Operators[] { Operators.Eq });

                        Mapper.CreateMap<PageElement, PageElementDTO>();
                        Mapper.CreateMap<Element, ElementDTO>();

                        return Mapper.Map<PageElement, PageElementDTO>(pel);

                    } catch (Exception ex) {
                        throw ex;
                    } finally {
                        session.Flush();
                        session.Close();
                    }
                }

            }
        }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack) {
            string idPageElement = Request.QueryString["idpel"];
            iditemamm = Convert.ToInt32(Request.QueryString["iditem"]);
            PageServices pgserv = new PageServices();

            PageElementDTO pel = new PageElementDTO();
            pel = pgserv.GetPageelementByPageelementID(Convert.ToInt32(idPageElement));

            RawHtml row = new RawHtml();
            row = pgserv.GetRawHtmlById(pel.Rawhtmlid);
            edit.Text = row.Value;
            RawHtmlId = row.Rawhtmlid;
        }
    }