让DataGrid拥有单击回传事件并带回指定字段的值[4]

2、  要传回的数据源字段

    public string selectpostbackdatafield

        {

            get

            {

                if (viewstate[base.uniqueid + "selectpostbackdatafield"] == null)

                    return null;

                return viewstate[base.uniqueid + "selectpostbackdatafield"].tostring();

            }

            set { viewstate[base.uniqueid + "selectpostbackdatafield"] = value; }

        }