/// <summary>
        /// 绑定DropDownList
        /// </summary>
        private void ListBind()
        {
            //功能列表
            DataSet ds = bllPower.GetAllList();
            this.DDLPower_Id.DataSource = ds;
            this.DDLPower_Id.DataBind();
            this.DDLPower_Id.Items.Insert(0, "----请选择父节点----"); //这个是设置插入静态的数据
        }

DDLPower_Id.DataTextField = "deptName";

DDLPower_Id.DataValueField = "deptName";