HTMLAgilityPack，HTML重复ID [英] HTMLAgilityPack, HTML duplicate IDs

问题描述

您好：这和这个这里

一>。但需要在服务器级而不是客户级完成。目前我使用HTMLAgilityPack，无论如何，我可以检测到重复的ID？

解决方案

这是一个快速的方法：

  HtmlDocument doc = new HtmlDocument（）; 
 doc.LoadHtml（htmlString）; 
 
 var count = new Dictionary< string，int>（）; 
 
 foreach（doc.documentNode.Descendants（）中的var节点）
 {
 string id = node.GetAttributeValue（id，null）; 
 if（id！= null）
 {
 if（count.ContainsKey（id））count [id] + = 1; 
 else count.Add（id，1）; 
} 
} 
 
 var duplicates = count.Where（id => id.Value> 1）; 
  

这基本上解析了整个文档，在Hash中跟踪计数。

Hi: This is similar to this one here. But needs to be done at the server level rather at the client level. Currently I use HTMLAgilityPack, is there anyway I could detect duplicate IDs? Thanks in advance.

解决方案

Here's a quick way to do it:

HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(htmlString);

var count = new Dictionary<string, int>(); 

foreach (var node in doc.DocumentNode.Descendants())
{
    string id = node.GetAttributeValue("id", null);
    if (id != null)
    {
        if (count.ContainsKey(id)) count[id] += 1;
        else count.Add(id, 1); 
    }
}

var duplicates = count.Where( id => id.Value > 1 );

This basically parses the whole document keeping track of count in a Hash.

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