需要HtmlAgilityPack命名空间管理器或XsltContext。 该查询具有前缀，变量或用户定义的函数

Question

I am using HtmlAgilityPack and i am facing this error

Namespace Manager or XsltContext needed. This query has a prefix, variable, or user-defined function.

using this code

    Document.LoadHtml(textBox1.Text);

    var result = Document.DocumentNode.SelectNodes("id('side_info')/x:div[2]/x:a/x:span");
    textBox1.Text = result.ToString();

[NOTE] i am using XPath Checker add on for Firefox and it tells that the namespace x is at uri http://www.w3.org/1999/xhtml/

But i cant add the name space to the HtmlAgilityPack SelectNodes

Answer 1

好的，我用SelectSingleNode和XSLTContext解决了这个问题。