protected void btnTrack_Click(object sender, EventArgs e)
    {
        try
        {
            System.Net.ServicePointManager.Expect100Continue = false;
            var radiobuttonList = (RadioButtonList)Parent.FindControl("rblProviderList");
            var providerId = int.Parse(radiobuttonList.SelectedValue);
            var usps = new USPS();
            string trackingNo = txtTrackingNo.Text.Trim().Replace(" ", "");
            txtTrackingNo.Text = trackingNo;
            AspxCommonInfo commonObj = new AspxCommonInfo();
            commonObj.StoreID = GetStoreID;
            commonObj.PortalID = GetPortalID;

            var response = usps.GetTrackingInfo(trackingNo, providerId, commonObj);
            if (!response.IsFailed)
            {
                lblError.Text = "";
                ShowResult(response);

            }
            else
            {
                dvTrackResponse.InnerHtml = "";
                ShowError(response.Error);
                ShowMessage(SageMessageTitle.Exception.ToString(), response.Error, response.Error, SageMessageType.Error);


            }
                   }
        catch (Exception ex)
        {
            ShowError(ex.Message);
            ProcessException(ex);
        }
    }
    private void CreateLabel()
    {
        try
        {


            string api = rblLabelTypeList.SelectedValue;
            var items = (List<ItemDetail>)Session["sl_items"];
            var orderInfo = (OrderLabel)Session["labelOrderInfo"];
            if (items == null)
            {
                BindPackageDetails(orderInfo);
                items = (List<ItemDetail>)Session["sl_items"];
            }
            var totalWt = items.Sum(itemDetail => itemDetail.Weight);
            if (totalWt == 0)
            {
                throw new Exception("Minimum weight of package must be 0.1");
            }
            decimal totalWtInOunce = 0;
            if (_weightUnit.ToLower().Trim() == "lbs" || _weightUnit.ToLower().Trim() == "lb")
            {
                               totalWtInOunce = (decimal)((totalWt) * 16);
            }
            else
            {
                               totalWt = totalWt * (decimal)2.2;
            }

            var package = new USPSShipment();
            package.Width = decimal.Parse(txtPackageWidth.Text.Trim());
            package.Height = decimal.Parse(txtPackageHeight.Text.Trim());
            package.FromAddress = (OriginAddress)Session["sl_frAddress"];
            package.GrossOunce = totalWtInOunce;
            package.GrossPound = totalWt;
            var total = CalculateGirth();
            package.Container = Container.RECTANGULAR;
            package.ContentType = ContentType.OTHER;
            package.ImageLayout = ImageLayout.ALLINONEFILE;
            package.ImageType = (ImageType)Enum.Parse(typeof(ImageType), ddlImageType.SelectedValue);
            package.Items = items;
            package.NonDeliveryOption = NonDeliveryOption.RETURN;
            package.Option = "1";
            package.POZipCode = "";
            package.ServiceType = (ServiceType)Enum.Parse(typeof(ServiceType), ddlServiceType.SelectedValue);
            package.ToAddress = (DestinationAddress)Session["sl_toAddress"];
            package.Length = decimal.Parse(txtPackageLength.Text.Trim());
            package.Grith = decimal.Parse(txtPackageGirth.Text.Trim());
            package.Api = api;
            var providerId = int.Parse(Session["sl_pid"].ToString());

            var labelCreater = new USPS();

            var response = labelCreater.SendShipmentConfirmation(package, providerId, GetStoreID, GetPortalID);

            if (!response.IsFailed)
            {


                if (response.IsDomestic)
                {
                    string trackingNo = response.DeliveryConfirmationNumber;
                                                          ShippingLabelInfo info = new ShippingLabelInfo();
                    info.TrackingNo = trackingNo;
                    info.ShippingLabelImage = response.LabelString;
                    info.OrderID = orderInfo.OrderId;
                    info.Extension = package.ImageType.ToString().ToLower();
                    info.IsRealTime = true;
                    SaveLabelInfo(info);
                    DisplayFile(response.TempLabelPath);
                    lblErrorMessage.Text = "";
                }
                else
                {
                    string barcodeNo = response.IntlResponse.BarcodeNumber;
                                      
                    ShippingLabelInfo info = new ShippingLabelInfo();
                    info.ShippingLabelImage = response.LabelString;
                    info.OrderID = orderInfo.OrderId;
                    info.Extension = package.ImageType.ToString().ToLower();
                    info.IsRealTime = true;
                    info.TrackingNo = "";
                    info.BarcodeNo = barcodeNo;
                    SaveLabelInfo(info);
                }
                ClearForm();

            }
            else
            {
                lblErrorMessage.Text = response.Error;
            }
        }
        catch (Exception ex)
        {

            throw ex;
        }
    }