다중 수행 방법 Linq에서 선택 위치

Question

저는 Linq에서 새롭고이 SQL 쿼리를 Linq 형식으로 변환하려고합니다.

이

나도이 SO 질문에보고 한 SQL 형식

select * 
from investorwallets iw 
where transactionid in 
(select investordepositid from investordeposits) 
or transactionid in 
(select withdrawalid from investorwithdrawals) 
or transactionid in 
(select paymentdistributionid from paymentdistributions) 

이지만위한 행운 나

편집이 내가 시도 무엇

. 나는 그것을 테스트하기 위해 Linqpad를 사용한다.

from iw in Investorwallets 
where (
      from id in Investordeposits // I got error from here 
      select id.investordepositid 
     ) 

누구든지 나를 도울 수 있는가?

는

Answer 1

가장 직접적인은 감사 :

from iw in investorwallets 
where investordeposits.Any(iten => item.investordepositid == iw.transactionid) || 
     investorwithdrawals.Any(iten => item.withdrawalid == iw.transactionid) || 
     paymentdistributions.Any(item => item.paymentdistributionid == iw.transactionid) 
select iw; 

당신은 또한 노동 조합 결과 다음은 .Contains을 할 수 그러나

:

var ids = investorwithdrawals.Select(item => item.investordepositid) 
          .Union(investorwithdrawals.Select(item => item.withdrawalid)) 
          .Union(paymentdistributions.Select(item => item.paymentdistributionid)); 

var result = investorwallets.Where(item => ids.Contains(item.transactionid)); 

Answer 2

 List<investorwallet> investorwallets = GetInvestorwallets(); 
     List<investordeposit> investordeposits = GetInvestordeposits(); 
     List<investorwithdrawal> investorwithdrawals = GetInvestorwithdrawals(); 
     List<paymentdistribution> paymentdistributions = GetPaymentdistribution(); 

     List<investorwallet> newList = investorwallets.Where(x => investordeposits.Any(y=>y.investordepositid == x.transactionid) 
             || investorwithdrawals.Any(y => y.withdrawalid == x.transactionid) 
             || paymentdistributions.Any(y => y.paymentdistributionid == x.transactionid)).ToList();