<%@ Control Language="C#" AutoEventWireup="true" CodeFile="CustomGatewayForm.ascx.cs" Inherits="CMSEcommerce_Example_CustomGatewayForm" %>

<asp:Label ID="lblTitle" runat="server" EnableViewState="false" CssClass="BlockTitle" />

<asp:Label ID="lblError" runat="server" EnableViewState="false" CssClass="ErrorLabel" Visible="false" />

<asp:Label ID="lblCardNumber" EnableViewState="false" runat="server" />

<asp:TextBox ID="txtCardNumber" runat="server" />

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 CMS.EcommerceProvider;

using CMS.GlobalHelper;

public partial class CMSEcommerce_Example_CustomGatewayForm : CMSPaymentGatewayForm

{

   protected void Page_Load(object sender, EventArgs e)

   {

       // Initialize label     

       lblTitle.Text = "Your credit card details";

       lblCardNumber.Text = "Credit card number:";

   }

   /// <summary>

   /// Initializes form controls with customer payment data.

   /// </summary>

   public override void LoadData()

   {

       // Display customer credit card number

       txtCardNumber.Text = ValidationHelper.GetString(this.ShoppingCartInfoObj.PaymentGatewayCustomData["CustomGatewayCardNumber"], "");

   }

   /// <summary>

   /// Validates customer payment data.

   /// </summary>

   /// <returns></returns>

   public override string ValidateData()

   {

       if (txtCardNumber.Text.Trim() == "")

       {           

           lblError.Visible = true;

           lblError.Text = "Please enter your credit card number";

           return lblError.Text;

       }

       return "";

   }

   /// <summary>

   /// Process customer payment data.

   /// </summary>

   /// <returns></returns>

   public override string ProcessData()

   {

       // Save credit card number

       this.ShoppingCartInfoObj.PaymentGatewayCustomData["CustomGatewayCardNumber"] = txtCardNumber.Text.Trim();

       return "";

   }

}

using System;

using System.Collections.Generic;

using System.Text;

using System.Web;

using System.Collections;

using CMS.EcommerceProvider;

using CMS.GlobalHelper;

namespace CMS.CustomProvider

{

   /// <summary>

   /// Class representing Custom Gateway processor.

   /// </summary>

   public class CustomGateway : CMSPaymentGatewayProvider

   {

       /// <summary>

       /// Returns payment gateway form with custom controls.

       /// </summary>

       /// <returns></returns>

       public override CMSPaymentGatewayForm GetPaymentDataForm()

       {

           try

           {

               return (CMSPaymentGatewayForm)this.ShoppingCartControl.LoadControl("~/CMSEcommerce/Example/CustomGatewayForm.ascx");

           }

           catch

           {

               return null;

           }

       }

       /// <summary>

       /// Process payment.

       /// </summary>

       public override void ProcessPayment()

       {          

           // Get payment gateway url

           string url = this.GetPaymentGatewayUrl();

           if (url != "")

           {

               // Initialize payment parameters

               Hashtable parameters = InitializePaymentParameters();

               // Add required payment data to the url

               url = GetFullPaymentGatewayUrl(url, parameters);

               // Redirect to payment gateway to finish payment

               this.ShoppingCartControl.Page.Response.Redirect(url);

           }

           else

           {               

               // Show error message - payment gateway url not found

               this.ErrorMessage = "Unable to finish payment: Payment gateway url not found.";

               // Update payment result

               this.PaymentResult.PaymentDescription = this.ErrorMessage;

               this.PaymentResult.PaymentIsCompleted = false;

               // Update order payment result in database

               this.UpdateOrderPaymentResult();

           }

       }

       /// <summary>

       /// Returns table with initialized payment parameters.

       /// </summary>

       /// <returns></returns>

       private Hashtable InitializePaymentParameters()

       {

           Hashtable parameters = new Hashtable();

           parameters["orderid"] = this.ShoppingCartInfoObj.OrderId;

           parameters["price"] = this.ShoppingCartInfoObj.TotalPrice;

           parameters["currency"] = this.ShoppingCartInfoObj.CurrencyInfoObj.CurrencyCode;

           parameters["cardnumber"] = Convert.ToString(this.ShoppingCartInfoObj.PaymentGatewayCustomData["CustomGatewayCardNumber"]);

           return parameters;

       }

       /// <summary>

       /// Returns payment gateway url with payment data in query string.

       /// </summary>

/// <param name="url">Payment gateway url.</param>

       /// <param name="parameters">Initialized payment paremeters.</param>

       /// <returns></returns>

       private string GetFullPaymentGatewayUrl(string url, Hashtable parameters)

       {

           foreach (DictionaryEntry parameter in parameters)

           {

               // Add payment data to the url

               url = UrlHelper.AddParameterToUrl(url, Convert.ToString(parameter.Key), HttpUtility.UrlEncode(Convert.ToString(parameter.Value)));

           }

           return url;

       }

   }

}