public static string IngresaNota(BENotas obj)
        {
            IHotels IService = new IHotels();
            string  fdoc     = "";

            if (obj.fechaF.Length > 5)
            {
                fdoc = obj.fechaF.Substring(6, 4) + obj.fechaF.Substring(3, 2) + obj.fechaF.Substring(0, 2);
            }

            string stResp = IService.ISetNotaCredito(obj.SerieNC, obj.CorrNC, obj.SerieF, obj.CorrF, fdoc);

            if (stResp != null)
            {
                if (stResp.Equals("0"))
                {
                    return("No se actualizo ningun registro");
                }
                else
                if (stResp.Substring(0, 1).Equals("0"))
                {
                    return(stResp.Substring(2));
                }
                else
                {
                    return("Se actualizaron " + stResp + " registro(s).");
                }
            }
            else
            {
                return("0");
            }
        }
        protected void btnAceptar_Click(object sender, EventArgs e)
        {
            IHotels IService = new IHotels();
            string  fdoc     = "";

            if (txtfecDoc.Text.Length > 5)
            {
                fdoc = txtfecDoc.Text.Substring(6, 4) + txtfecDoc.Text.Substring(3, 2) + txtfecDoc.Text.Substring(0, 2);
            }

            lblMsg.Text = "Se actualizaron " + IService.ISetNotaCredito(txtNumSerieNC.Text, txtNumCorrNC.Text, txtNumSerieFactura.Text, txtNumCorrFactura.Text, fdoc)
                          + " registro(s).";

            txtNumSerieNC.Text      = string.Empty;
            txtNumCorrNC.Text       = string.Empty;
            txtNumSerieFactura.Text = string.Empty;
            txtNumCorrFactura.Text  = string.Empty;
            txtfecDoc.Text          = string.Empty;
        }