后台生成json数据

 /// <summary>
        /// 生成JS按钮事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void LBCreateAdFile_Click(object sender, EventArgs e)
        {
            string sMapPath = Server.MapPath("/Js/Date/HomeAd.js");
            string sTxt = string.Empty;

            string sql = " where State = 1 order by HomeAdvertisingId desc";
            IList<HomeAdvertisingInfo> hailists = HomeAdvertisingBLL.GetHomeAdvertisingByStr(sql);
            if (hailists.Count > 0)
            {
                sTxt = "var HomeAdObj = [";
                for (int i = 0; i < hailists.Count; i++)
                {
                    sTxt += "{"Label":" + """ + hailists[i].Label + """ + ","ImgUrl":" + """ + hailists[i].ImgUrl + """ + ","BackgroundColor":" + """ + hailists[i].BackgroundColor + """ + ","Link":" + """ + hailists[i].Link + """ + ","State":" + """ + hailists[i].State + """ + ","Sort":" + """ + hailists[i].Sort + """ + "}";
                    if (hailists.Count > 1 && i < hailists.Count - 1)
                    {
                        sTxt += ",";
                    }
                }
                sTxt += "];";
                File.WriteAllText(sMapPath, sTxt);
                MessageBox.Show(this.Page, "生成文件成功");
            }
            else
            {
                MessageBox.Show(this.Page, "暂无数据");
            }
            BindData();
        }