将SQL转换为LINQ查询

Question

您好我是LINQ的新手，需要将以下SQL转换为LINQ。 有人可以帮我写一下吗？

select emp.id, emp.name from employee emp 
left join department dept on dept.id = emp.deptid 
and (emp.managerid = '001' or (emp.manager in (select managerid from manager where location Contains('l001','l002','l003') and state =1))) 

感谢

Answer 1

也许是这样的：

var locationIds = new List<string> {"l001", "l002", "l003"}; 
var ls=(
    from emp in db.employee 
    from dept in db.department 
     .Where(a=>a.id == emp.deptid).DefaultIfEmpty() 
    where (emp.managerid == "001" 
     || db.manager.Where(w=>locationIds.Contains(w.location) && w.state == 1) 
        .Select(s=>s.managerid).Contains(emp.manager)) 
    select new 
     { 
      emp.id, 
      emp.name 
     } 
).ToList(); 

其中db是将预期的这个查询做LINQ数据上下文