private void FillPoste()
        {
            IEnumerable <PosteDto> data;
            LookupManager          lm = new LookupManager();

            data = lm.GetAllPosteForCompany((int)Session["CompagnieID"]);
            DdlPoste.DataSource     = data;
            DdlPoste.DataValueField = "PosteID";
            DdlPoste.DataTextField  = "Nom";
            DdlPoste.DataBind();
            DdlPoste.Items.Insert(0, new ListItem("< Choisir un poste >", "0"));
        }