如何将我的Umbraco网站与Worldpay集成

我需要将我的Umbraco网站连接到我的Worldpay帐户。我发现很少有关于这方面的文章，但由于这对我来说都是新的，我需要一个简单明了的示例。我关注了这篇文章，但不知道如何将我的用户控制（支付表单）连接到世界支付。

任何帮助都将不胜感激。

@Digbyswift：我试过你的解决方案，但仍然没有成功！如果你能看一看，让我知道我的代码中有什么问题，我将不胜感激：

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="LoadForm.ascx.cs" Inherits="BInstitute.usercontrols.LoadForm" %>
<form action="https://secure-test.worldpay.com/wcc/purchase" name="BuyForm" method="POST" >
<input type="hidden" name="instId"  value= "<% = this.instId %>" ><!-- The "instId" value "211616" should be replaced with the Merchant's own installation Id -->
<input type="hidden" name="cartId" value="abc123"  ><!-- This is a unique identifier for merchants use. Example: PRODUCT123 -->
<input type="hidden" name="currency" value="GBP" ><!-- Choose appropriate currency that you would like to use -->
<input type="hidden" name="amount" value="<% = this.amount %>">
<input type="hidden" name="desc" value="<% = this.desc %>" >
<input type="hidden" name="testMode" value="100"  >
<div id="MembershipForm" runat="server" visible="False">

    <table>
       <tr>
            <td width="25%" >
                <asp:Label ID="lblMembershipSurname" runat="server"></asp:Label>
            </td>
            <td >
                <asp:TextBox ID="txtMembershipSurname" runat="server" Class="textblock"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td width="25%" >
                <asp:Label ID="lblMembershipAddressLine1" runat="server"></asp:Label>
            </td>
            <td >
                <asp:TextBox ID="txtMembershipAddressLine1" runat="server" Class="textblock"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td width="25%" >
                <asp:Label ID="lblMembershipAddressLine2" runat="server"></asp:Label>
            </td>
            <td >
                <asp:TextBox ID="txtMembershipAddressLine2" runat="server" Class="textblock"></asp:TextBox>
            </td>
        </tr>
        <tr>
            <td width="25%" >
                <asp:Button ID="btnMembershipSubmit" runat="server"  PostBackUrl="https://secure-test.worldpay.com/wcc/purchase" Class="btn_submit"/>
            </td>
            <td >
                &nbsp;</td>
        </tr>
        </table>
</div>
</form>

后端源代码是：

public partial class LoadForm : System.Web.UI.UserControl
    {
        private string _instId = "288499";
        private string _cartId = "Test";
        private string _currency = "GBP";
        private string _testMode = "100";
        private string _amount = "10";
        private string _desc = "testDesc";
        public string desc
        {
            get { return _desc; }
            set { _desc = value; }
        }
        public string amount
        {
            get { return _amount; }
            set { _amount = value; }
        }
        public string instId
        {
            get { return _instId; }
            set { _instId = value; }
        }
        public string cartId
        {
            get { return _cartId; }
            set { _cartId = value; }
        }
        public string currency
        {
            get { return _currency; }
            set { _currency = value; }
        }
        public string testMode
        {
            get { return _testMode; }
            set { _testMode = value; }
        }
}