private void DoDelegate(BatchPassedOrCancelPassedOrDelete batch)
        {
            string str = this.GdvAD.SelectList.ToString();

            if (!string.IsNullOrEmpty(str))
            {
                if (batch(str))
                {
                    BasePage.ResponseRedirect("ADManage.aspx");
                }
            }
            else
            {
                AdminPage.WriteErrMsg("没有选中任何广告!");
            }
        }
        protected void EBtnPassed_Click(object sender, EventArgs e)
        {
            BatchPassedOrCancelPassedOrDelete batch = new BatchPassedOrCancelPassedOrDelete(Advertisement.Passed);

            this.DoDelegate(batch);
        }