weixin_api/wxpay/example/NativeAjax.aspx.cs

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using WxPayAPI;

namespace weixin_api.wxpay.example
{
    public partial class NotiveAjax : System.Web.UI.Page
    {
        protected string code = "";
        protected void Page_Load(object sender, EventArgs e)
        {
            Log.Info(this.GetType().ToString(), "page load");

            NativePay nativePay = new NativePay();

            //生成扫码支付模式一url
            code = WxPayApi.GenerateOutTradeNo();//商户订单号
            Response.Write(code);
            //生成扫码支付模式二url
            string url2 = nativePay.GetPayUrl("123456789", code);

            //将url生成二维码图片
            Image2.ImageUrl = "MakeQRCode.aspx?data=" + HttpUtility.UrlEncode(url2);
        }
    }
}