使用C#通过div中的内容获取div类 [英] get div class by content inside div using C#
本文介绍了使用C#通过div中的内容获取div类的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要确定包含一些文本的 div 元素的类.例如，我有这个HTML页面
I need to identify the class of a div element which contains some text.
For example I have this HTML page
<html>
...
<div class='x'>
<p>this is the text I have.</p>
<p>Another part of text.</p>
</div>
...
</html>
所以我知道文本这是我的文本.文本的另一部分.而且我需要确定div类的名称.有没有办法使用C#做到这一点?
So I know the text this is the text I have. Another part of text. And I need to identify the div class name. Is there an way to do this using C#?
推荐答案
以diiN_的答案为基础.这有点冗长，但是您应该能够从中获得所需的东西.该代码取决于 HTML Agility Pack .您可以使用nuget来获取它.
Building on the answer of diiN_. This is a bit verbose but you should be able to get what you need from it. The code depends on the HTML Agility Pack. You can get it using nuget.
var sb = new StringBuilder();
sb.AppendFormat("<html>");
sb.AppendFormat("<div class='x'>");
sb.AppendFormat("<p>this is the text I have.</p>");
sb.AppendFormat("<p>Another part of text.</p>");
sb.AppendFormat("</div>");
sb.AppendFormat("</html>");
const string stringToSearch = "<p>this is the text I have.</p><p>Another part of text.</p>";
var document = new HtmlDocument();
document.LoadHtml(sb.ToString());
var divsWithText = document
.DocumentNode
.Descendants("div")
.Where(node => node.Descendants()
.Any(des => des.NodeType == HtmlNodeType.Text))
.ToList();
var divsWithInnerHtmlMatching =
divsWithText
.Where(div => div.InnerHtml.Equals(stringToSearch))
.ToList();
var innerHtmlAndClass =
divsWithInnerHtmlMatching
.Select(div =>
new
{
InnerHtml = div.InnerHtml,
Class = div.Attributes["class"].Value
});
foreach (var item in innerHtmlAndClass)
{
Console.WriteLine("class='{0}' innerHtml='{1}'", item.Class, item.InnerHtml);
}
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