Question

How do I convert this into LinQ?

SELECT *
FROM YourTable
WHERE id IN (
    SELECT MAX(id) FROM YourTable GROUP BY alarmId, alarmUnit
    )

tried so far below but doesn’t work

 var a= from x in YourTable .ToList()
                                  group x by new { x.alarmId, x.alarmUnit} into g
                                  from x1 in YourTable 
                                  where x1.ID == (from x2 in g select x2.ID).Max()
                                  select x1;

Thanks,

Answer 1

Try this:

var a= from x in YourTable .ToList()
       group x by new { x.alarmId, x.alarmUnit} into g
             select new
             {
               alarmId = g.Key.alarmId,
               alarmUnit = g.Key.alarmUnit,
               id = g.Max(b => b.id)
             };