HTML敏捷包 - 如何在Head元素的顶部追加元素？

I'm trying to use HTML Agility Pack to append a script element into the top of the HEAD section of my html. The examples I have seen so far just use the AppendChild(element) method to accomplish this. I need the script that I am appending to the head section to come before some other scripts. How can I specify this?

我正在尝试使用HTML Agility Pack将脚本元素附加到我的html的HEAD部分的顶部。到目前为止我看到的例子只是使用AppendChild(element)方法来实现这一点。我需要将我附加到head部分的脚本放在其他脚本之前。我怎么指定这个?

Here's what I'm trying:

这是我正在尝试的:

HtmlDocument htmlDocument = new HtmlDocument();
htmlDocument.Load(filePath);
HtmlNode head = htmlDocument.DocumentNode.SelectSingleNode("/html/head");
HtmlNode stateScript = htmlDocument.CreateElement("script");
head.AppendChild(stateScript);
stateScript.SetAttributeValue("id", "applicationState");
stateScript.InnerHtml = "'{\"uid\":\"testUser\"}'";

I would like a script tag to be added toward the top of HEAD rather than appended at the end.

我想在HEAD的顶部添加一个脚本标记,而不是在末尾附加。

2 个解决方案

#1

Realizing that this is an old question, there is also the possibility of prepending child elements that might not have existed then.

意识到这是一个古老的问题,也有可能在那里预先存在可能不存在的子元素。

// Load content as new Html document
HtmlDocument html = new HtmlDocument();
html.LoadHtml(oldContent);

// Wrapper acts as a root element
string newContent = "<div>" + someHtml + "</div>";

// Create new node from newcontent
HtmlNode newNode = HtmlNode.CreateNode(newContent);

// Get body node
HtmlNode body = html.DocumentNode.SelectSingleNode("//body");

// Add new node as first child of body
body.PrependChild(newNode);

// Get contents with new node
string contents = html.DocumentNode.InnerHtml;

#2

Got it..

HtmlNode has the following methods:

HtmlNode具有以下方法:

HtmlNode.InsertBefore(node, refNode)
HtmlNode.InsertAfter(nodeToAdd, refNode)

#1