After a lot of search, I cannot find a simple answer to this following SQL Statement :

```
SELECT t1.LoginName, t0.BNAME
FROM USR02 AS t0
LEFT OUTER JOIN LoginData AS t1
    INNER JOIN Mandants AS t2 ON t1.Id_Mandants = t2.Id_Mandants
ON t0.BNAME = t1.LoginName AND t0.MANDT = t2.CodeMandant

```

Because of the double ON statement I don't know how to write it in LINQ.

I've tried to simplify it but multiple primary key make the job hard.