protected bool ImportFromExcelToDelete(DataSet ds)
        {
            try
            {
                System.Data.DataTable dt = ds.Tables[0];

                int nAll    = dt.Rows.Count;
                int nDelete = 0;
                int nEmpty  = 0;

                foreach (System.Data.DataRow dr in dt.Rows)
                {
                    if (dr["SelectX"].ToString().ToLower() == "x")
                    {
                        string ECCode = dr["ECCode"].ToString().Trim();

                        //判断是否存在
                        if (!ECTagDal.CodeExist(ECCode, ""))
                        {
                            //MessageBox.popupClientMessage(this.Page, " 该机组的输出标签已存在!", "call();");
                            nEmpty += 1;
                            continue;
                        }
                        else
                        {
                            //main tag
                            ECTagEntity mEntity = new ECTagEntity();
                            mEntity.ECID = ECTagDal.GetECIDByCode(ECCode);

                            ECTagDal.Delete(mEntity);
                            nDelete += 1;
                        }
                    }
                }

                string strInfor = "标签点总数为:{0}个, 删除成功:{1}个,空标签点: {2}个。";
                strInfor = string.Format(strInfor, nAll, nDelete, nEmpty);

                MessageBox.popupClientMessage(this.Page, strInfor, "call();");

                return(true);
            }
            catch (Exception ee)
            {
                //
                MessageBox.popupClientMessage(this.Page, ee.Message, "call();");

                return(false);
            }
        }