下了个支付宝得插件如何插到我的项目中去

using System;
using System.Data;
using System.Configuration;
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 Gateway;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {

       //按时构造订单号；

        System.DateTime currentTime=new System.DateTime();
            currentTime=System.DateTime.Now;
            string out_trade_no = currentTime.ToString("g");
            out_trade_no = out_trade_no.Replace("-", "");
            out_trade_no = out_trade_no.Replace(":", "");
            out_trade_no = out_trade_no.Replace(" ", "");
       //业务参数赋值；
        string gateway = T_gateway.Text; //'支付接口
        string service = T_service.Text;
        string partner = T_partner.Text; //partner 合作伙伴ID 保留字段
        string sign_type = T_sign_type.Text;
        string subject =  T_subject.Text; //subject 商品名称
        string body = T_body.Text; //body 商品描述
        string payment_type = T_payment_type.Text;                  //支付类型
        string price = T_total_fee.Text;
        string quantity = TextBox1.Text;
        string show_url = T_show_url.Text;
        string seller_email = T_seller_email.Text;             //卖家账号
        string key = T_key.Text;              //partner账户的支付宝安全校验码
        string return_url = T_return_url.Text; //服务器通知返回接口
        string notify_url =T_notify_url.Text; //服务器通知返回接口
        string _input_charset = T_inputchatset.Text;
        string logistics_type = "POST";
        string logistics_fee = TextBox2.Text;
        string logistics_payment = "BUYER_PAY";
        string logistics_type_1 = "EXPRESS";
        string logistics_fee_1 = TextBox3.Text;
        string logistics_payment_1 = "BUYER_PAY";
        AliPay ap = new AliPay();
        string aliay_url=ap.CreatUrl(
            gateway,
            service,
            partner,
            sign_type,
            out_trade_no,
            subject,
            body,
            payment_type,
            price,
            show_url,
            seller_email,
            key,
            return_url,
            _input_charset,
            notify_url,
            logistics_type,
            logistics_fee,
            logistics_payment,
            logistics_type_1,
            logistics_fee_1,
            logistics_payment_1,
            quantity
            );

        Response.Redirect(aliay_url);

    }

} --------------------编程问答-------------------- 呵呵，今天我也刚做了个支付宝的接口，把这个方法放到你要支付的页面去调用就行了 --------------------编程问答-------------------- Response.Redirect(aliay_url);
这样不行吧，aliay_url应该是个加密串，转向不了吧，应该还有段response.write form提交的串吧

补充：.NET技术 ,  ASP.NET