c# - LINQ 是否可以动态添加 where 子句

Question

我想用不同的键搜索我的数据库。根据输入，可能有1个键到10个键。有没有办法动态地向我的 Linq 查询添加 OR/AND 子句？

 keys[k] // I have my keys in this array 
 var feedList = (from feed in ctx.Feed
                 where feed.content.contains(keys[0]) 
                       && feed.content.contains(keys[1])
                       && ... // continues with the keys.length
                 select new {
                    FeedId = feed.DuyuruId,
                    FeedTitle = feed.FeedTitle,
                    FeedContent = feed.FeedContents,
                    FeedAuthor = user.UserName + " " +User.UserSurname
 }

Answer 1

你可以试试 .All检查所有键的子句:

where keys.All(key => feed.content.contains(key))