需要用於以下SQL Server查詢的等效LINQ查詢

Question

我正在查找以下查詢的等效LINQ查詢。

SELECT SUM (Cost) FROM [Vulpith_Test2].[dbo].tbl_MilestonesForOngoingSeeker] 
WHERE ([Post_Title_ID] = '3251' 
and [List_Title_ID]='1180') 
and (PaymentStatus='1' or PaymentStatus='3'); 

Answer 1

int sumofCost = dbContext.tbl_MilestonesForOngoingSeeker.Where(a => a.Post_Title_ID == "3251" && a.List_Title_ID == "1180" && (a.PaymentStatus == 1 || a.PaymentStatus == 3)).Sum(a => a.Cost);