checkoutconfirm.aspx.cs

一个很好的网上购物系统！进行了新的修改具有很多的功能！

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Globalization;

public partial class CheckoutConfirm : System.Web.UI.Page {
    //set scope so all methods can access
    ShoppingCart cart;
    
    protected void Page_Load(object sender, EventArgs e) {
        //this page MUST be protected by SSL!

        cart = ShoppingCartManager.GetCart();
        if (!Page.IsPostBack) {
           BindOrder();
            
            if (Request.QueryString["token"] != null) {
                string sToken = Request.QueryString["token"].ToString();
                //load up the info
                LoadFromPP(sToken);
            } else if(Request.QueryString["st"]!=null){
                //this is a Payments Standard checkout
                //so set the payment method, and hide the other payment
                //bits
                lblPaymentSummary.Text = "PayPal Payment";
                tblBillInfo.Visible = false;

            }else{
                SaveBillingInfo();
                LoadFromProfile();
            }
            
            string fromZip = ConfigurationManager.AppSettings["ShipFromZip"].ToString();
            BindShipping(fromZip, Profile.Commerce.ShipZip, cart.TotalWeight);
            
            LoadBillingLabels();
            LoadShippingLabels();
            SetTax(Profile.Commerce.ShipState);
            SetShipping();
            SetTotals();

       }

       if (SiteConfiguration.UsePayPalPaymentsStandard)
       {
           trPlaceOrder.Visible = false;
           trRunPayPal.Visible = true;
           PPStandardCheckout1.Subtotal = cart.SubTotal;
           PPStandardCheckout1.TaxAmount = TaxCalculator.GetTaxByZip(Profile.Commerce.ShipZip, cart.SubTotal);
           PPStandardCheckout1.ShippingMethod = ddlShipService.SelectedItem.Text;
           PPStandardCheckout1.ShippingAmount = Convert.ToDouble(ddlShipService.SelectedValue);


       } else {
           trPlaceOrder.Visible = true;
           trRunPayPal.Visible = false;

       }


   }

    #region Control Bindings
    void BindOrder() {
            dgBasket.DataSource = cart.Items;
            dgBasket.DataBind();

        }
        void BindShipping(string fromZip, string toZip, double weight) {
            IDataReader rdr = ShippingManager.GetShippingChoices(fromZip, toZip, weight);
            ddlShipService.DataSource = rdr;
            ddlShipService.DataTextField = "Service";
            ddlShipService.DataValueField = "Rate";
            ddlShipService.DataBind();
            rdr.Close();

            //localize it
            double dRate=0;
            foreach (ListItem l in ddlShipService.Items) {
                dRate=Convert.ToDouble(l.Value);
                l.Text = l.Text + ": " + dRate.ToString("C");
            }
        }

        void LoadShippingLabels() {
            lblShipName.Text = Profile.Commerce.ShipFirst + " " + Profile.Commerce.ShipLast;
            lblShipAddress1.Text = Profile.Commerce.ShipAddress1;
            lblShipAddress2.Text = Profile.Commerce.ShipAddress2 + "<br>";
            lblShipAddress2.Visible = Profile.Commerce.ShipAddress2 != string.Empty;
            lblShipCity.Text = Profile.Commerce.ShipCity;
            lblShipState.Text = Profile.Commerce.ShipState;
            lblShipCountry.Text = Profile.Commerce.ShipCountry;
            lblShipZip.Text = Profile.Commerce.ShipZip;

        }
        void LoadBillingLabels() {
            lblName.Text = Profile.First + " " + Profile.Last;
            lblAddress1.Text = Profile.Address1;
            lblAddress2.Text = Profile.Address2 + "<br>";
            lblAddress2.Visible = Profile.Address2 != string.Empty;
            lblCity.Text = Profile.City;
            lblState.Text = Profile.State;
            lblCountry.Text = Profile.Country;
            lblZip.Text = Profile.Zip;


        }

        void LoadFromPP(string sToken) {
            Commerce.PayPal.APIWrapper wrapper = new Commerce.PayPal.APIWrapper(
                SiteConfiguration.PayPalAPIAccountName, SiteConfiguration.PayPalAPIAccountPassword,
                SiteConfiguration.PayPalAPICertificationPath, SiteConfiguration.PayPalAPICertificationPassword);

            //they have come back from the PayPal site and have a token, so use this token to go get their info
            //and populate the shipping etc.
            Commerce.PayPal.APIWrapper.PayerInfo payer = wrapper.GetExpressCheckout(sToken);
            SavePayPalInfo(payer);



            //populate the final payment screen
            lblPaymentSummary.Text = "PayPal account<br>" + payer.PayerEmail;
            txtToken.Text = payer.Token;
            txtPayerID.Text = payer.PayerID;

        }
        void LoadFromProfile() {

            if (PreviousPage != null && PreviousPage.IsCrossPagePostBack) {

                //using a CrossPagePost to hold the credit card. We DO NOT want to save
                //this to the DB.

                txtCCNumber.Text = GetPreviousTextValue("txtCCNumber");
                txtCCAuthCode.Text = GetPreviousTextValue("txtCCAuthCode");
                txtCCType.Text = GetPreviousSelectValue("ddlCCType");
                txtCCExpMonth.Text = GetPreviousSelectValue("ddlExpMonth");
                txtCCExpYear.Text = GetPreviousSelectValue("ddlExpYear");


                string CCNumber = txtCCNumber.Text;//Encryption.Decrypt(Profile.Commerce.CCNumber, SiteConfiguration.EncryptionPassword);


                string lastFour = "XXXX";
                if (CCNumber.Length > 4) {
                    //get the last 4 digits
                    lastFour = CCNumber.Substring(CCNumber.Length - 4, 4);
                } else {

                }
                string ccNumReplaced = "";
                for (int i = 0; i < CCNumber.Length - 4; i++) {
                    ccNumReplaced += "X";
                }
                ccNumReplaced += lastFour;

                lblPaymentSummary.Text = "Credit Card Account: <br>" + txtCCType.Text + ": " + ccNumReplaced;
            }

        }
    #endregion

    #region Event Handlers
    protected void btnOrder_Click(object sender, EventArgs e) {
        
        //if there is a token in the querystring
        //this is a return from PayPal, and is therefore
        //an express checkout
        string transactionID = "";
        if (Request.QueryString["token"] != null) {
            transactionID=RunExpressCheckout();
        } else {
            transactionID = RunCharge();
        }

        //if an error occurred, the error will be shown in
        //tablerow trError. if that's visible, don't send them off
        if (uResult.Visible == false) {
            Response.Redirect(Request.ApplicationPath + "/Receipt.aspx?t=" + transactionID);
        }
    }
    protected void btnChange_Click(object sender, EventArgs e) {
        Response.Redirect("Checkout.aspx");

    }


    protected void ddlShipService_SelectedIndexChanged(object sender, EventArgs e) {
        SetShipping();
        SetTotals();
    }
    #endregion

    #region Profile Updaters
    void SaveBillingInfo() {
        //get the billing and save to profile
        Profile.First = GetPreviousTextValue("txtBillFirst");
        Profile.Last = GetPreviousTextValue("txtBillLast");
        Profile.City = GetPreviousTextValue("txtBillCity");
        Profile.Zip = GetPreviousTextValue("txtBillZip");
        Profile.Address1 = GetPreviousTextValue("txtBillAddress");
        Profile.Address2 = GetPreviousTextValue("txtBillAddress2");
        Profile.Country = GetPreviousSelectValue("ddlCountry");
        if (Profile.Country == "US") {
            Profile.State = GetPreviousSelectValue("ddlState");
        } else {
            Profile.State = GetPreviousTextValue("txtState");

        }
        
        Profile.Save();

    }
    void SavePayPalInfo(Commerce.PayPal.APIWrapper.PayerInfo payer) {
        //save the profile info for later
        Profile.Commerce.ShipFirst = payer.PayerFirst;
        Profile.Commerce.ShipLast = payer.PayerLast;
        Profile.Commerce.ShipAddress1 = payer.PayerAddress1;
        Profile.Commerce.ShipAddress2 = payer.PayerAddress2;
        Profile.Commerce.ShipCity = payer.PayerCity;
        Profile.Commerce.ShipCountry = payer.PayerCountry;
        Profile.Commerce.ShipZip = payer.PayerZip;
        Profile.Commerce.ShipState = payer.PayerState;
        Profile.Save();

    }
    #endregion

    #region Helper Functions
    Order CreateOrderObject() {
        Order orderRec = new Order();
        double dSubtotal = cart.SubTotal;
        double dShipping = double.Parse(ddlShipService.SelectedValue);
        string shippingMethod = ddlShipService.SelectedItem.Text;
        double dTax = double.Parse(txtTaxAmount.Text);

        string shipSummary = Profile.Commerce.ShipFirst + " " + Profile.Commerce.ShipLast + "<br>" + Profile.Commerce.ShipAddress1 +
            "<br>" + Profile.Commerce.ShipAddress2 + "<br>" + Profile.Commerce.ShipCity +
            ", " + Profile.Commerce.ShipState + " " + Profile.Commerce.ShipZip + "<br>" + Profile.Commerce.ShipCountry;

        orderRec.UserName = User.Identity.Name;
        orderRec.OrderSubTotal = cart.SubTotal;
        orderRec.Shipping = dShipping;
        orderRec.ShippingAddress = shipSummary;
        orderRec.Tax = dTax;
        orderRec.ShippingMethod = shippingMethod;
        orderRec.PaymentMethod = lblPaymentSummary.Text;

        return orderRec;

    }

    private Control FindControl(string controlID, ControlCollection controls) {
        foreach (Control c in controls) {
            if (c.ID == controlID)

                return c;
            if (c.HasControls()) {
                Control cTmp = this.FindControl(controlID, c.Controls);
                if (cTmp != null)
                    return cTmp;
            }
        }
        return null;
    }
    string GetPreviousTextValue(string controlName) {
        string sOut = "";
        TextBox txt = (TextBox)FindControl(controlName, PreviousPage.Controls);
        if (txt != null)
            sOut = txt.Text;
        return sOut;

    }
    string GetPreviousSelectValue(string controlName) {
        string sOut = "";
        DropDownList drop = (DropDownList)FindControl(controlName, PreviousPage.Controls);
        if (drop != null)
            sOut = drop.SelectedValue;
        return sOut;

    }
    void ShowMessage(string sMessage) {
        uResult.Visible = true;
        uResult.ShowFail(sMessage);
    }
    #endregion

    #region Calculators
    void SetTax(string sState) {

        //tax calculation
        //the tax amount is legally set by where the order is 
        //to be shipped, not where the buyer is located
        //when the information is entered for shipping
        //calculate the tax rate and output.

        //please consult a tax advisor or 
        //your legal department for proper
        //application of tax
        double dTax = TaxCalculator.GetTaxByState(sState, cart.SubTotal);
        lblTax.Text = dTax.ToString("c");
        txtTaxAmount.Text = dTax.ToString();

    }
    void SetShipping() {
        //shipping calculation
        double dShipping = 0;
        try {
            dShipping=Convert.ToDouble(ddlShipService.SelectedValue);
        } catch(Exception x) {

        }
        lblShipping.Text = dShipping.ToString("c");
    }
    void SetTotals() {
        //calculate the final total
        try {
            double dShipping = Convert.ToDouble(ddlShipService.SelectedValue);
            double dTax = Convert.ToDouble(txtTaxAmount.Text);
            double dTotal = cart.SubTotal + dTax + dShipping;
            lblTotal.Text = dTotal.ToString("c");
        } catch {

        }

    }

    #endregion

    #region Charger
    string RunCharge() {
        double dSubtotal = cart.SubTotal;
        double dShipping = double.Parse(ddlShipService.SelectedValue);
        string shippingMethod = ddlShipService.SelectedItem.Text;
        double dTax = 0;
        try {
            dTax = double.Parse(txtTaxAmount.Text);
        } catch {

        }
        Commerce.Providers.CreditCardType ccType = Commerce.Providers.CreditCardType.Visa;
        string sOut = "";

        if (txtCCType.Text == "MasterCard") {
            ccType = Commerce.Providers.CreditCardType.MasterCard;
        } else if (txtCCType.Text == "AMEX") {
            ccType = Commerce.Providers.CreditCardType.AMEX;

        }

        try {
            sOut=OrdersManager.RunCharge(Profile.First, Profile.Last, Profile.Address1, Profile.Address2,
                Profile.City, Profile.State, Profile.Zip, Profile.Country, txtCCNumber.Text,
                int.Parse(txtCCExpMonth.Text), int.Parse(txtCCExpYear.Text), ccType,
                txtCCAuthCode.Text, dSubtotal, Math.Round(dTax,2), dShipping, shippingMethod, lblPaymentSummary.Text);
        } catch (Exception x) {
            ShowMessage(x.Message);
        }
        return sOut;
    }


    #endregion


    //For use with Express Checkout
    #region API Calls

    Commerce.PayPal.APIWrapper.OrderItem[] GetOrderItemsArray() {
        //loop out the basket items into a an array of 
        //Commerce.OrderItem[]
        Commerce.PayPal.APIWrapper.OrderItem item;

        int itemCount =cart.Items.Rows.Count;
        Commerce.PayPal.APIWrapper.OrderItem[] items = new Commerce.PayPal.APIWrapper.OrderItem[itemCount];

        DataRow dr;
        for (int i = 0; i < itemCount; i++) {
            dr = cart.Items.Rows[i];
            item = new Commerce.PayPal.APIWrapper.OrderItem();
            item.ProductName = dr["ModelName"].ToString();
            item.SKU = dr["ModelNumber"].ToString();
            item.UnitPrice = (double)dr["Price"];
            item.Quantity = (int)dr["Quantity"];

            //add to the array
            items[i] = item;
        }
        return items;
    }

   
    string RunExpressCheckout() {

        Commerce.PayPal.APIWrapper.OrderItem[] items = this.GetOrderItemsArray();
        string transactionID = "";
        try {
            //use the wrapper to call PayPal and run the charge
            Commerce.PayPal.APIWrapper.OrderInfo order = OrdersManager.RunExpressOrder(CreateOrderObject(),
                txtToken.Text,txtPayerID.Text, items);


            if (order.Ack == "Success") {
                transactionID = order.TransactionID;
                
            } else {
                ShowMessage(order.Ack);
            }
        } catch (Exception x) {
            ShowMessage(x.Message);
        }
        return transactionID;
    }
    #endregion
   

}