private void buttonUploadTrackingNumber_Click(object sender, EventArgs e) { if (ebayTrans == null || account == null) { return; } string sellerName = ebayTrans.SellerName; if (null == sellerName) { return; } string shippingCarrier = textBoxCarrier.Text.Trim(); string shipmentTrackingNumber = textBoxTrackingNumber.Text.Trim(); if (shippingCarrier == "" || shipmentTrackingNumber == "") { MessageBox.Show("输入错误!", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } EbayTransactionBiz.UploadTrackingNumber(account, ebayTrans.ItemId, ebayTrans.EbayTransactionId, shippingCarrier, shipmentTrackingNumber); MessageBox.Show("上传跟踪号成功!", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information); EbayTransactionDAL.UpdateTransactionShippingTrackingNo(ebayTrans.TransactionId, shipmentTrackingNumber); }