[英]SQL Linq with contains items from list
here is my code: 这是我的代码:
CommissionCalculationDataContext dc = new CommissionCalculationDataContext();
CrossAppDataContext dc2 = new CrossAppDataContext();
List<Group_ADUser_Mapping> mapList = (from a in dc.Group_ADUser_Mappings where a.GroupID == '3' select a).ToList();
List<ADUser> userList = (from a in dc2.ADUsers where mapList.Contains(a.sAMAccountName) select a).ToList(); //doesnt work
The target is, I got a mapping list and then only need to get the User which are in this mapping list (by SAMAccountName) 目标是,我得到了一个映射列表,然后只需要获取此映射列表中的User(通过SAMAccountName)
Error is: Has OVerload problems.... 错误是:出现OVerload问题...。
So in fact I want to compare Group_ADUser_Mappings.sAMAccountName
with ADUser.sAMAAccountName
. 因此,实际上我想将
Group_ADUser_Mappings.sAMAccountName
与ADUser.sAMAAccountName
进行比较。
Try 尝试
List<String> mapList = dc.Group_ADUser_Mappings.Where(x => x.GroupID == '3').Select(y => y.sAMAccountName).ToList();
List<ADUser> userList = dc2.ADUsers.Where(x => mapList.Contains(x.sAMAccountName)).ToList();
To avoid upper/lower case problems of List.Contains
, you can filter afterwards. 为了避免
List.Contains
大小写问题,您可以随后进行过滤。 This should work (untested): 这应该工作(未试用):
userList = userList.Where(x => mapList.Any(y => y.sAMAccountName == x.sAMAccountName)).ToList();
Can you just join the two entities and select your ADUser? 您可以只加入两个实体并选择您的ADUser吗?
List<ADUser> userList = (from a in dc2.ADUsers
join b in dc.Group_ADUser_Mappings on a.sAMAccountName equals b.sAMAccountName
where b.GroupID == "3"
select a).ToList();
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