求 Entity_Framework 高手 SQL语句转Entity_Framework格式

 SELECT item FROM table1 WHERE table1.id in 
(SELECT id FROM table2 where table2.xx="")

差不多就是这个select语句 咋转成Entity_Framework格式
[解决办法]
var query= tb1.Where(n=>tb2.Where(v=>v.xx=="").Select(v=>v.ID).Contains(n=>n.id));

http://bbs.csdn.net/topics/390568031