LINQ to SQL选择在字符串拆分中具有任何单词的所有记录 [英] LINQ to SQL selecting all records which have any word in the string split

问题描述

string1:如何
string2:你好吗?

string1: How
string2: How Are you ?

我想要做的是通过对照string1检查string2并选择具有"How"或"Are"或"you"的任何记录来从数据库中选择所有记录.

What i want to do is select all records from the database by checking string2 against string1 and selecting any record which have either "How" or "Are" or "you".

 pager1.ItemCount = appliedQuery.Where(q => q.string1.Contains(string2)).count();

请注意:String1只是一个单词，我只想获取db2中任何单词的任何出现的db中的所有记录.

PlEASE NOTE: String1 is just one word and I just want to get all records in the db with any occurance of any word in string2.

我知道string2需要拆分，但是拆分后我如何在linq查询语句中使用它来获取记录?

I understand that string2 needs to split, however after the split how do i use it in the linq query statement to fetch the records?

预先感谢

推荐答案

查看我如何构造linq查询.我希望这有帮助. 只需尝试将代码复制并粘贴到控制台应用中即可查看结果.

Check out how I constructed my linq query. I hope this helps. Just try to copy and paste the code in your console app to see the result.

class Program
{
    static void Main(string[] args)
    {
        // List of strings that you may consider it from your 
        /// database which is String1
        List<string> lstStrings = new List<string>();
        lstStrings.Add("twenty one");
        lstStrings.Add("twenty two");
        lstStrings.Add("twenty three");
        lstStrings.Add("twenty four");

        // The string to compare to which is your String2
        string strString = "one two four";

        // Splitting the strings to be compared
        string[] strArray = strString.Split(' '); 

        // The linq that helps you query the data exactly as what you wanted
        var result = (from string A in lstStrings
                               from string B in strArray
                               where A.Contains(B)
                               select A).Distinct();

        // Count result
        Console.WriteLine(result.Count());

        // Individual values
        foreach (string str in result)
        {
            Console.WriteLine(str);
        }

        Console.ReadLine();
    } 
}

这篇关于LINQ to SQL选择在字符串拆分中具有任何单词的所有记录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！