private BindingSource NewMethodServicio()
        {
            tb_co_detraccionBL BL = new tb_co_detraccionBL();
            tb_co_detraccion BE = new tb_co_detraccion();

            DataTable table = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];
            DataRowCollection rows = table.Rows;

            object[] cell;
            Dictionary<string, string> dic = new Dictionary<string, string>();
            BindingSource binding = new BindingSource();

            foreach (DataRow item in rows)
            {
                cell = item.ItemArray;
                dic.Add(cell[0].ToString(), cell[0].ToString() + " (" + cell[2].ToString() + "%) - " + cell[1].ToString());
                cell = null;
            }
            binding.DataSource = dic;
            return binding;
        }
        private void cboServicio_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (u_n_opsel > 0)
            {
                bool VMZOK = false;
                if (cboServicio.SelectedValue.ToString().Trim().Length == 0)
                {
                    txtPorcdet.Text = "";
                }
                else
                {
                    try
                    {
                        tb_co_detraccionBL BL = new tb_co_detraccionBL();
                        tb_co_detraccion BE = new tb_co_detraccion();

                        BE.detraccionid = cboServicio.SelectedValue.ToString();
                        tmptabla = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];
                        // tmptabla = ocapa.CaeSoft_GetAllCuentaDetraccion(cmbservicio.SelectedValue, 0, "", "", "", 2);
                        if (BL.Sql_Error.Length == 0)
                        {
                            if (tmptabla.Rows.Count > 0)
                            {
                                txtPorcdet.Text = tmptabla.Rows[0]["detraccionporcent"].ToString();
                                VMZOK = true;
                            }
                        }
                        if (!VMZOK)
                        {
                            txtPorcdet.Text = "";
                        }
                    }
                    catch (Exception ex)
                    {
                        DevExpress.XtraEditors.XtraMessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                refrescacontroles();
            }
        }