private void btnPrint_Click(object sender, EventArgs e)
 {
     try
     {
         string pay_status = dgvList.SelectedRows[0].Cells[4].Value.ToString();;
         if (pay_status == "已支付")
         {
             OrderModel om = new OrderModel();
             om.Out_trade_no = dgvList.SelectedRows[0].Cells[1].Value.ToString();
             om.Buyer_email  = dgvList.SelectedRows[0].Cells[7].Value.ToString();
             PrintUtils.printOrder(om);
         }
         else
         {
             MessageHelper.ShowTips("此订单未付款!" + pay_status);
         }
     }catch (Exception ex)
     {
         MessageHelper.ShowError("没有选择任何订单!");
     }
 }
 private void printOrder()
 {
     PrintUtils.printOrder(ORDER);
 }