如何使用多个'和''或'条件过滤List

Question

我正在尝试按以下SQL查询格式过滤List;

SQL

SELECT * FROM Tracker
 where (TrackProposalID = 6 and TrackRequestID = 0) or TrackRequestID = 16

LINQ的

到目前为止我已经尝试了这个但是语法错误;

listT = CType(listT.Where(Function(o) (o.TrackProposalID = 6 And o.TrackRequestID = 0) or (o.TrackRequestID = 16)).ToList 

Answer 1

在C＃中

listT = listT.Where(o => (o.TrackProposalID == 6 && o.TrackRequestID == 0) || o.TrackRequestID == 16).ToList();

Answer 2

试试这个

listT = listT.Where(x=>(x.TrackProposalID == 6 && x.TrackRequestID == 0) || (x.TrackRequestID == 16).ToList();

Answer 3

var newList = listT.Where(x=>(x.TrackProposalID == 6 && x.TrackRequestID == 0) || x.TrackRequestID == 16).ToList();

Answer 4

var result = listT.Where(x => x.TrackRequestID == 16 || (x.TrackProposalID == 6 &&  x.TrackRequestID == 0))

如果你不打造ToList（）。它将执行每次调用“结果”。所以我建议制作ToList（）。