Analysiere Tabelle mit HtmlAgilitypack-Problem

Question

Analysiere Tabelle mit HtmlAgilitypack-Problem

asp.net c# html html-agility-pack

Frage

Ich versuche einen Tisch zu parsen, der so aussieht:

<table><tbody>
<tr><th a href=""></th><th></th></tr>
<tr><td class="v"></td><td class="d"></td><td class="h"></td><td class="a">   </td><td class="o"></td><td class="o"></td><td class="o"></td><td class="p"><table class="p" title="ttt"></table></td></tr>
<tr><td class="v"></td><td class="d"></td><td class="h"></td><td class="a">   </td><td class="o"></td><td class="o"></td><td class="o"></td><td class="p"><table class="p" title="eee"></table></td></tr>
<tr><td class="v"></td><td class="d"></td><td class="h"></td><td class="a">   </td><td class="o"></td><td class="o"></td><td class="o"></td><td class="p"><table class="p" title="rtr"></table></td></tr>
<tr><th a href=""></th><th></th></tr>
<tr><td class="v"></td><td class="d"></td><td class="h"></td><td class="a">   </td><td class="o"></td><td class="o"></td><td class="o"></td><td class="p"><table class="p" title="ouu"></table></td></tr>
<tr><td class="v"></td><td class="d"></td><td class="h"></td><td class="a">   </td><td class="o"></td><td class="o"></td><td class="o"></td><td class="p"><table class="p" title="teee"></table></td></tr>
</tbody></table>

Und ich verwende diesen Code in ASP.net, um die Zellen in jeder Zeile zu erhalten, die ich möchte:

var getHtmlWeb = new HtmlWeb();
var document = getHtmlWeb.Load(txtbox.Text); 
//get tables
foreach (HtmlNode table in document.DocumentNode.SelectNodes("//table"))
        {
            //get each table row
            foreach (HtmlNode row in table.SelectNodes("tr"))
            {

                Outputlabel.Text += "row: <br />";
//get table head tags that have a link, get the Inner text
                if((row.SelectSingleNode("//th//a").InnerText) != null)
                {

                    Outputlabel.Text += row.SelectSingleNode("//th//a").InnerText + "<br />";
                }
                // get the cells with the classes I want
                    string d = row.SelectSingleNode("//td[@class='d']").InnerText;
                    Outputlabel.Text += row.SelectSingleNode("//td[@class='d']").InnerText + " ";

                    string h = row.SelectSingleNode("//td[@class='h']").InnerText;
                    Outputlabel.Text += row.SelectSingleNode("//td[@class='h']").InnerText + " ";
                    string a = row.SelectSingleNode("//td[@class='a']").InnerText;
                    Outputlabel.Text += row.SelectSingleNode("//td[@class='a']").InnerText + " ";
                    string op = "";
//there are 3 classes in each row to have the class="o"
                    if (row.SelectNodes("//td[@class='o']") != null)
                    {
                        foreach (HtmlNode o in row.SelectNodes("//td[@class='o']"))
                        {
                            op += o.InnerText;
                        }
                        Outputlabel.Text += op + " ";
                    }

                    var pr = row.SelectSingleNode("//td//table[@class='p']");
                    string pr = probability.Attributes["title"].Value;

                    Outputlabel.Text += pr + "<br />";
            }
        }

Ich bekomme nur die erste Zeile der ersten Tabelle und es wird oft wiederholt ... und ich bekomme nicht die Klasse "o" und den Titel der Tabelle mit der Klasse "p" im td-Tag mit der Klasse "p"

Bill

Meer bekijken op Stack Overflow

Bill · Accepted Answer · 2/2/2015 4:12:22 PM

Es scheint so für die Online-HTML-Datei zu funktionieren:

    HtmlWeb getHtmlWeb = new HtmlWeb();

        HtmlDocument doc = getHtmlWeb.Load(txtbox.Text);

        string d = "//td[@class='d']";
        string h = "//td[@class='h']";
        string a = "//td[@class='a']";
        string p = "//table[@class='p']";


        HtmlNodeCollection ds = doc.DocumentNode.SelectNodes(d);
        HtmlNodeCollection hs = doc.DocumentNode.SelectNodes(h);
        HtmlNodeCollection as = doc.DocumentNode.SelectNodes(a);
        HtmlNodeCollection ps = doc.DocumentNode.SelectNodes(p);
foreach (HtmlNode n in ds)
        {
            Outputlabel.Text += n.InnerHtml + "<br />"; 
        }

        foreach (HtmlNode h in hs)
        {
            Outputlabel.Text += h.InnerHtml + "<br />";
        }
        foreach (HtmlNode a in as)
        {
            Outputlabel.Text += a.Attributes["href"].Value + "<br />";
        }
        foreach (HtmlNode p in ps)
        {
            Outputlabel.Text += p.Attributes["title"].Value + "<br />";
        }

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