// 批量删除
        protected void Button2_Click(object sender, EventArgs e)
        {
            string ids = Request.Form["idChk"];

            if (string.IsNullOrEmpty(ids))
            {
                return;
            }
            msgBll.DelByAdmin(ids);
            MyBind();
        }
 //删除
 protected void BtnDelete_Click(object sender, EventArgs e)
 {
     msgBll.DelByAdmin(Mid.ToString());
     Response.Redirect("Message.aspx");
 }