Convert SQL to Linq left join with null

Question

How can I convert properly this SQL to linq

select  t1.ProgramID
from Program t1 LEFT JOIN ProgramLocation t2 ON  t1.ProgramID = t2.ProgramID 
where t2.Progr         


        

Answer 1

Try this

  var progy = (
         from u in db.ProgramLocations join b in db.Programs
         on u.ProgramID equals b.ProgramID into yG 
         from y1 in yG.DefaultIfEmpty() 
         where y1 == null
         select u.ProgramID
        ).ToList();

You can check this post on MSDN.

Hope this works for you.