protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { ExamesComplementaresDAL ObjExamesComplementaresDAL = new ExamesComplementaresDAL(); ddlExamesComplementares.DataSource = ObjExamesComplementaresDAL.DropDownlist(); ddlExamesComplementares.DataTextField = "Descricao"; ddlExamesComplementares.DataValueField = "Id"; ddlExamesComplementares.DataBind(); ddlExamesComplementares.Items.Insert(0, new ListItem("<--Selecione-->", string.Empty)); //Texto Inicial do combo } }