c# - SQL query to LINQ expression -


how can translate sql query linq expression?

select notedate, sum( durationinhours ) note  iduser = '2933fb9c-cc61-46da-916d-57b0d5ef4803' ,        notedate > '2013-07-01' group notedate

i tried it, didn't work

var lastmonth = datetime.today.addmonths(-1);  var usernotes = getnotesbyuser(iduser);  var b = note in usernotes          group note new {note.iduser, note.notedate, note.durationinhours} g          g.key.notedate > lastmonth           select new {g.key.notedate, totalhours = g.sum(a => a.durationinhours)} 

var id = new guid("2933fb9c-cc61-46da-916d-57b0d5ef4803"); var date = new datetime(2013, 7, 1);  var query = n in db.notes             n.iduser == id && n.notedate > date             group n n.notedate g             select new {                 notedate = g.key,                 sum = g.sum(x => x.durationinhours)             };

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