Linq

            var docStatusBar = from ee in zDtNetRecord.AsEnumerable()
                                                 from ff in zDtPvMenu.AsEnumerable()
                                                 from gg in zDtPgpPv.AsEnumerable()
                                                 where (ee.Field<int>("FK_PvUserListID") == zUserId
                                                 && ff.Field<int>("ID") == ee.Field<int>("FK_PvMenuID")
                                                 && ff.Field<string>("Command") == gg.Field<string>("Command")
                                                 && !ff.Field<bool>("IsDeleted"))
                                                 orderby ee.Field<int>("UsedTimes") descending
                                                 select new
                                                 {
                                                     MenuName = ff.Field<string>("MenuName"),
                                                     Command = ff.Field<string>("Command"),
                                                     UserCmd = gg.Field<string>("UserCmd"),
                                                     Detail = ff.Field<string>("Detail"),
                                                     MenuParent = ff.Field<string>("MenuParent"),
                                                     UsedTimes = ee.Field<int>("UsedTimes"),
                                                     IsActive = ff.Field<bool>("IsActive"),
                                                 };