Попадая 2 колонки из таблицы

Question

Я хотел использовать HTMLagility пакет, чтобы получить 3 colums из таблицы

<table id="inner" border="1" width="25"><h3>20:25 07/02/2014 
S3 
</h3><th>Pred</th><th>Act</th><th>Name</th><th>Age</th><th>Odds</th><tr><td>1 (44.8)</td><td>2</td><td align ="center" width="8">Grandads Rifle</td><td>50</td><td>6/4F</td></tr> 
<tr><td>2 (39.1)</td><td>3</td><td align ="center" width="8">Rosario Girl</td><td>33</td><td>3/1</td></tr> 
<tr><td><b>3 (38.6)</b></td><td><b>1</b></td><td align ="center" width="8"><b>Zulu Hondo</b></td><td><b>33</b></td><td><b>6/1</b></td></tr> 
<tr><td>4 (37.6)</td><td>6</td><td align ="center" width="8">Lethal Tiger</td><td>53</td><td>9/4</td></tr> 
<tr><td>5 (33.4)</td><td>4</td><td align ="center" width="8">Redstone Bo Dhu</td><td>33</td><td>6/1</td></tr> 
<tr><td>6 (27.8)</td><td>5</td><td align ="center" width="8">Corgrigg Candy</td><td>25</td><td>8/1</td></tr> 
</table id="inner"> 

из вышесказанного я бы только хочу, чтобы выбрать колонку 0,1 & 4 из таблицы.

Я пытался сделать свой код следующим образом:

Imports System.IO 
Imports System.Collections.Generic 
Imports System.Linq 
Imports System.Text 
Imports HtmlAgilityPack 
Partial Class Grayhounds_home 
    Inherits System.Web.UI.Page 
    ' Gettodaysmatches(cominguptable, "https://www.betfair.com/sport/football?selectedTabType=TODAY", ".//div[contains(@class, 'match event-information ui-event')]", ".//span[@class='home-team-name']", ".//span[@class='away-team-name']", ".//span[@class='ui-no-score']") 

    Private Sub Grayhounds_home_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 

     Dim webGet As New HtmlWeb() 'open the system 
     Dim doc As HtmlDocument = webGet.Load("http://www.greyhoundpredictions.co.uk/results.php") '' get the html from the webpage 

     Dim tables As HtmlNodeCollection = doc.DocumentNode.SelectNodes(".//table[@id='inner']") 
     Dim rows As HtmlNodeCollection = tables(0).selectNodes(".//tr") 

     Dim makeSpace As String = vbLf & vbLf 

     For i As Integer = 1 To rows.Count - 1 
      Dim cols As HtmlNodeCollection = rows(i).SelectNodes(".//td") 

      Dim Pred As String = cols(0).InnerText 
      Dim Act As String = cols(1).InnerText 
      Dim Odds As String = cols(4).InnerText 


      Console.WriteLine("Pred : " & Pred & vbLf) 
      Console.WriteLine("actual : " & Act & vbLf) 
      Console.WriteLine("Odds : " & Odds & vbLf) 

      Console.WriteLine(makeSpace) 
     Next 

    End Sub 
End Class 

но это, но тянуть что-нибудь назад

Answer 1

Вы можете использовать индексы для выбора п-й узел, а также использовать | для выбора нескольких узлов:

doc.DocumentNode.SelectNodes("//table[@id='inner']//tr//td[0] | //table[@id='inner']//tr//td[1] | //table[@id='inner']//tr//td[4]")