我要从一个gridview或者dataset里提取它最后一行的记录DataSet dsplannedInfo_ship = clsbasic_plannedHour_shipF.GetInfoByCondition(condition);
GridView2.DataSource = dsplannedInfo_ship;
GridView2.DataBind();
int k = GridView2.Rows.Count;
DataSet dslastInfo=GridView2.???后面应该怎么写??