Question

亲爱的，我只想在DataGrid视图中显示title =或alt =信息。如果我在td标签中输入相同的tekts，则一切正常。不幸的是，我不知道如何选择仅从title和alt中获取信息

在vb中的代码下面：

  Public Class Class1
    Public Function Test1() As DataTable
        Dim Document As New HtmlAgilityPack.HtmlDocument()

        Document.Load("\Desktop\test2.htm")
        Dim table As HtmlAgilityPack.HtmlNode = Document.DocumentNode.SelectSingleNode("//table[@border='0']//tbody")

        Dim datatab As New DataTable()
      Dim rows = table.SelectNodes("tr")

        For row As Integer = 0 To rows.Count - 1
                     If row = 0 Then

                Dim cols = rows(row).SelectNodes("td")

                dt.Columns.Add(New DataColumn(cols(0).InnerText.ToString()))
                dt.Columns.Add(New DataColumn(cols(1).InnerText.ToString()))
                dt.Columns.Add(New DataColumn(cols(2).InnerText.ToString()))

            Else
                Dim cols = rows(row).SelectNodes("td")

                Dim dr As DataRow = datatab.NewRow()

                dr(0) = cols(0).InnerText.ToString()
                dr(1) = cols(1).InnerText.ToString()
                dr(2) = cols(2).InnerText.ToString()

                datatab.Rows.Add(dr)

            End If
        Next

        Return datatab 

    End Function
    End Class

这是代码html

    <!DOCTYPE html>
<head>
    <title></title>
</head>
<body>
    <table bordercolor="#808080" cellpadding="2" border="0">
    <tbody>
        <tr class="line">
            <td algin="center">Headers one</td>
            <td algin="center">Headers 2</td>
            <td algin="center">Headers 3</td>
        </tr>
        <tr class="line">
           <td align="center"><a href="http://page1"><img title="info:green:10.249.50.11" border="0" alt="info:green:10.249.50.11" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/green.gif" width="16" height="16"></a></td>
            <td algin="center"><a href="http://pagew"><img title="disk:red:13h12m" border="0" alt="disk:red:13h12m" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/red-recent.gif" width="16" height="16"></a></td>
            <td align="center"><a href="http://page5"><img title="disk:red:13h12m" border="0" alt="disk:red:13h12m" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/red-recent.gif" width="16" height="16"></a></td>
        </tr>
        <tr class="line">
            <td align="center"><a href="http://page19"><img title="memory:yellow:13h02m" border="0" alt="memory:yellow:13h02m" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/yellow-recent.gif" width="16" height="16"></a></td>
            <td align="center"><a href="http://page17"><img title="unibackup:red:24d05h19m" border="0" alt="unibackup:red:24d05h19m" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/red.gif" width="16" height="16"></a></td>
            <td align="center"><a href="http://pasge34"><img title="disk:red:13h12m" border="0" alt="disk:red:13h12m" src="red%20%20Xymon%20-%20Status%20@%20Thu%20Jan%2003%20172037%202019_pliki/red-recent.gif" width="16" height="16"></a></td>
        </tr>
    </table>
    </tbody>
</body>
</html>

HTML Agility Pack，DataGrid视图，vb.net

0 个答案: