//删除
 protected void lbtnDel_Click(object sender, EventArgs e)
 {
     chkLoginLevel("delAdvertising");
     DtCms.BLL.Adbanner bll = new DtCms.BLL.Adbanner();
     for (int i = 0; i < rptList.Items.Count; i++)
     {
         int      id = Convert.ToInt32(((Label)rptList.Items[i].FindControl("lb_id")).Text);
         CheckBox cb = (CheckBox)rptList.Items[i].FindControl("cb_id");
         if (cb.Checked)
         {
             //删除图片
             DeleteFile(bll.GetModel(id).AdUrl);
             //保存日志
             SaveLogs("[首页图片管理]增加首页图片内容:" + bll.GetModel(id).Title);
             //删除记录
             bll.Delete(id);
         }
     }
     JscriptPrint("批量删除成功啦!", "BarList.aspx?" + CombAdUrlTxt(this.pid, this.keywords) + "page=0", "Success");
 }