ASP:NET MVC搜索中的多个单词 [英] ASP:NET MVC multiple words in search

问题描述

当用户搜索时，我很难找出如何处理多个单词的方法.例如:搜索:"蓝色框"，它应该能够找到:一个框是蓝色".我该怎么做?基本上这就是我的控制器看起来像atm的样子:

I having trouble finding out how to handle multiple words when the user searches. An example: Search: "Blue box" it should be able to find: "One box is blue". How would I do this? This is basically how my controller looks like atm:

public ActionResult Index(string searchString)
{
    var posts = from s in _context.Posts
                   select s;

    var postIndexViewModel = new PostIndexViewModel();

    if (!String.IsNullOrEmpty(searchString))
    {
            posts = posts.Where(s => s.Title.Contains(searchString));
     }

    // More code here

    return View(postIndexViewModel);

}

推荐答案

您的问题是您正在使用整个字符串进行包含.这意味着它必须按顺序包含蓝框" .

Your problem is that you are doing the contains with a whole string. That means it must contain "Blue box" in that order.

这是您需要做的:

var strings = searchString.Split(' ');
var finalPosts = new List<string>();
if (!String.IsNullOrEmpty(searchString))
{
    foreach (var splitString in strings)
    {
        finalPosts.Add(posts.FirstOrDefault(s => s.Title.Contains(splitString)));
    }     
}

finalPosts 列表随后包含您的结果.

The finalPosts list then contains your results.

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