public void MyBind()
        {
            WxApp_RPT.DataSource = appBll.Sel();
            WxApp_RPT.DataBind();
            List <M_WxGroupInfo> groups = api.GetWxGroup();

            foreach (M_WxGroupInfo item in groups)
            {
                ListItem li = new ListItem(item.name, item.id.ToString());
                WxGroup_D.Items.Add(li);
            }
            WxGroup_D.Items.Insert(0, "所有分组");
        }