如何阅读子元素“strong”跨度？ C＃ [英] How do I read the child element "strong" of a span? C#

问题描述

大家好，



我正在尝试阅读跨度的子元素强。我希望然后把它转换为字符串。



所以在这种情况下我试图读取强值，即4号。 br />


有没有人有任何想法我怎么能做到这一点。



这是一份HTML的副本网页供参考。



Imgur：互联网上最棒的图片 [ ^ ]



提前谢谢



我的尝试：



我已经尝试过在各种论坛上观看，包括这个，没有运气。



我目前为止代码

Hi Guys,

I'm trying to read the child element "Strong" of a span. I'm looking to then convert it to a string.

so in this case I'm trying to read the "strong" value which is the number 4.

Does anyone have any ideas how i can achieve this please.

Here is a copy of the HTML web page for reference.

Imgur: The most awesome images on the Internet[^]

Thank you in advance

What I have tried:

I have already tried looking on various forums including this one and no luck.

Code i have so far

            HtmlElementCollection allelements = _webBrowser.Document.All;

            foreach (HtmlElement webpageelement in allelements)
            {
                if ((webpageelement.GetAttribute("span") == "4"))
                {
                    MessageBox.Show("Show");
                }
}

自从学到目前为止所说的这个帖子我有这个。

since learning from what is said so far in this thread i have this.

HtmlElementCollection theElementCollection = default(HtmlElementCollection);
theElementCollection = webBrowser1.Document.GetElementsByTagName("div");
foreach (HtmlElement curElement in theElementCollection)
{
    if (curElement.GetAttribute("className").ToString() == "ng-scope")
    {
        HtmlElementCollection childDivs = curElement.Children.GetElementsByName("strong");
        foreach (HtmlElement childElement in childDivs)
        {
            MessageBox.Show(childElement.InnerText);
        }

    }
}

推荐答案

HtmlElementCollection theElementCollection = default(HtmlElementCollection);
// you need a list of the "span" elements, not "div"
theElementCollection = _webBrowser.Document.GetElementsByTagName("span");
foreach (HtmlElement curElement in theElementCollection)
{
    if (curElement.GetAttribute("className").ToString() == "ng-scope")
    {
        // there isn't a GetElementsByTagName (GetElementsByName is something else) on the child element so we'll
        // iterate through all children....
        HtmlElementCollection childDivs = curElement.Children;
        foreach (HtmlElement childElement in childDivs)
        {
            // ..and check the TagName for "strong"
            if (string.Compare(childElement.TagName, "strong", true) == 0)
            {
                MessageBox.Show(childElement.InnerText);
            }
        }

    }
}

除了灵魂1之外 F-ES Sitecore [ ^ ]，这组文章可能对您有用：

< a href =https://www.codeproject.com/Tips/804660/How-to-Parse-HTML-using-Csharp>如何使用C＃解析HTML [ ^ ]

< a href =https://htmlagilitypack.codeplex.com/> Html Agility Pack - 主页 [ ^ ]

使用HtmlAgilityPack解析ASP.NET中的HTML [ ^ ]

GitHub - AngleSharp / AngleSharp：最终尖括号解析器库解析HTML5，MathML，SVG和CSS以构建基于官方W3C规范。 [ ^ ]

In addition to soultion 1 by F-ES Sitecore[^], this set of articles might be hepful to you:
How to Parse HTML using C# [^]
Html Agility Pack - Home[^]
Using the HtmlAgilityPack to parse HTML in ASP.NET[^]
GitHub - AngleSharp/AngleSharp: The ultimate angle brackets parser library parsing HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specifications.[^]

这篇关于如何阅读子元素“strong”跨度？ C＃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！