HtmlAgilityPack SelectSingleNode returns 一个没有 InnerHtml 的 HtmlNode

Question

我对 SelectSingleNode 方法有点困惑。我向它传递了一个简单的 xpath 表达式，并希望获得具有完整内容和所有嵌套节点的节点，但实际上只检索了一个 html 标签，我正在寻找没有任何内部和外部文本的内容，并且节点不包含任何子节点。

Xpath:

//form

这里是 html:

<HTML>
<BODY>
<FORM METHOD="POST" ACTION="https://test.com/action">
<INPUT TYPE="hidden" NAME="attribute1" VALUE="some value"/>
<INPUT TYPE="hidden" NAME="attribute2" VALUE="another value"/>
</FORM>
</BODY>
</HTML>

还有一个方法：

    public List<Parameter> CollectFilledInputsFromResponseForm(IRestResponse response, string formXpath)
    {
        var responseAsHtml = new HtmlDocument();
        responseAsHtml.LoadHtml(response.Content);
        var formDoc = responseAsHtml.DocumentNode.SelectSingleNode(formXpath);

        if (formDoc == null)
            throw new Exception(string.Format("No form found for '.{0}' xPath", formXpath));

        var formHtml = new HtmlDocument();
        formHtml.LoadHtml(formDoc.OuterHtml);
        var inputs = formHtml.DocumentNode.SelectNodes("//input");

        var parameters = new List<Parameter>();
        foreach (var input in inputs)
        {
            var name = input.GetAttributeValue("name", "Name not found");
            var value = input.GetAttributeValue("value", "Value not found");

            if (name.Equals("Name not found") || value.Equals("Value not found"))
                continue;

            parameters.Add(new Parameter(){Name = name,Value = value,Type = ParameterType.GetOrPost});
        }

        return parameters;
    }

请指教

Answer 1

Do HtmlNode.ElementsFlags.Remove("form"); before loading the document

见

HtmlAgilityPack SelectSingleNode returns 一个没有 InnerHtml 的 HtmlNode

HtmlAgilityPack SelectSingleNode returns an HtmlNode without InnerHtml

html

c#

xpath

dom

html-agility-pack