LINQ查询来匹配多个单词 [英] LINQ query to match multiple words

问题描述

我一直在试图整天解决这个问题，并没有发现真正有效的解决方案。当我搜索了一些资料，我想根据多个单词筛选出来的数据。

I've been trying to solve this problem all day, and haven't found a solution that truly works. When I search for some data, I want to filter out the data based on multiple words.

我的输入值使用标准.Split功能分手了。

My input value is split up by using the standard .Split-function.

string[] searchstrings = MessageResult.Split(' ');

我做了一个查询（这显然不正常），它试图过滤掉所有在searchstrings每个字符串匹配的条目。

I've made a query (which obviously doesn't work properly) that tries to filter out all the entries that matches every string in searchstrings.

                    var suggestions = (from a in query
                               from w in searchstrings
                               where a.Message.ToLower().Contains(w.ToLower())
                               select a).Distinct();

查询是我的变量里面有所有的数据。我怎样才能让这个查询实际上只匹配出包括searchstrings每个字符串项？

query is my variable which has all the data. How can I make this query to actually only match out entries that includes every string in searchstrings?

推荐答案

我觉得下面的代码应该解决你的问题。它检查是否在搜索字符串的所有单词都在查询（一）。

I think code below should solve your problem. It checks if all words in searchstring are in a query (a).

var suggestions = (from a in query
                   where searchstrings.All(word => a.ToLower().Contains(word.ToLower()))
                   select a);

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