HTMLAgility Pack找不到PageMap标记

Question

I am using HTMLAgility pack to get information from HTML pages about articles. 我正在使用HTMLAgility包从HTML页面获取有关文章的信息。 I am able to find whatever I want throughout the document but for some reason I cannot find the PageMap object no matter what I do. 我可以在整个文档中找到所需的内容，但是由于某种原因，无论我做什么，都找不到PageMap对象。 I created a test document to isolate just the PageMap and still no luck. 我创建了一个测试文档来仅隔离PageMap，但仍然没有运气。

This is the test HTML: 这是测试HTML：

<html>
    <head>

        <PageMap>
            <DataObject type="document">
                <Attribute name="article_title">Test Title</Attribute>
                <Attribute name="article_publication_name">Test Publication Name</Attribute>
                <Attribute name="article_author">Test Authro | The Test</Attribute>
                <Attribute name="article_description">A test of test and test test test!</Attribute>
                <Attribute name="image_src">http://www.google.com</Attribute>
                <Attribute name="article_comments">0</Attribute>
                <Attribute name="article_date_original">10/31/2015</Attribute>
                <Attribute name="article_date_updated">10/31/2015</Attribute>
            </DataObject>
        </PageMap>


    </head>
    <body>
        test
    </body>
</html>

This is the code I am using: 这是我正在使用的代码：

string strPageHTML = File.ReadAllText(@"test.htm");

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

HtmlNode htmnArticle = doc.DocumentNode.SelectSingleNode("//PageMap");
tbMessagePreview.Text = htmnArticle.InnerHtml;

The live or test HTML both load fine but htmnArticle node is always null. 实时HTML或测试HTML均可正常加载，但htmnArticle节点始终为null。 Any suggestions would be appreciated. 任何建议，将不胜感激。

Answer 1

Use //pagemap (HtmlAgilityPack normalizes nodes to lower case - HTML Agility Pack Parsing With Upper & Lower Case Tags? ): 使用//pagemap （HtmlAgilityPack将节点规范化为小写- 带有大写和小写标记的HTML Agility Pack解析？）：

HtmlNode htmnArticle = doc.DocumentNode.SelectSingleNode("//pagemap");
tbMessagePreview.Text = htmnArticle.InnerHtml;

Side note: looking at doc.DocumentNode.InnerHtml helps to see how nodes are normalized. 旁注：查看doc.DocumentNode.InnerHtml有助于查看节点如何规范化。

HTMLAgility Pack找不到PageMap标记

问题描述

1 个解决方案

解决方案1
1 已采纳 2015-11-01 20:41:09

HTMLAgility Pack找不到PageMap标记

问题描述

1 个解决方案

解决方案1 1 已采纳 2015-11-01 20:41:09

解决方案1
1 已采纳 2015-11-01 20:41:09