linq where 条件list动态添加

Question

我有这么一个需求，
public List query_销售票(List 条件List)
{
using (var db = new ERPDBDataContext())
{
var linq = from p in db.rec_Piao_Out
join c in db.doc_Customer on p.顾客ID equals c.顾客ID into c1
from cdefault in c1.DefaultIfEmpty()
select p;
return linq.ToList();
}
}

    我怎么将条件list添加到linq where 之中呢。list是一个条件集合.

Answer 1

return linq.AsEnumerable()
.Where(x => 条件List.Select(y => y.主键).Contains(x.主键))
.ToList();