0
请帮我将此查询转换为Linq to Entities。带有LEFT JOIN的LINQ请求返回不是预期的结果
SELECT
d.`DepartmentId`,
d.`ParentDepartmentId`,
d.`LeftKey`,
d.`RightKey`,
udp.`UserId`,
udp.`IsAllowed`
FROM
Departments AS d
LEFT JOIN UserDepartmentPermissions AS udp
ON udp.`DepartmentId` = d.`DepartmentId`
WHERE d.`IsExcluded` = 0
我特林这样的:
(from d in Departments
join udp in UserDepartmentPermissions
on d.DepartmentId equals udp.DepartmentId into JoindedDepsUserPermissions
from udp in JoindedDepsUserPermissions.DefaultIfEmpty()
where d.IsExcluded == 0
select new
{
d.DepartmentId,
d.ParentDepartmentId,
d.LeftKey,
d.RightKey,
udp.UserId,
udp.IsAllowed
}).ToList();
但它不返回相同的结果...
任何人可以帮助?
这样就OK了,但有点变通方法。谢谢 :) – 2012-02-20 15:17:41