C# HtmlAlityPack从html页面读取数据

我试图使用HTMLAgilityPack从html表中获取数据，但一直只获取第一个表行中的数据

我正在阅读的html代码如下所示：

<div id="mainDiv">
    <table id="tbl">
        <thead>
            <tr>
                <th class="tbl_col1">UserName</th>
                <th class="tbl_col2">Points</th>
            </tr>
        </thead>
        <tbody>     
          <tr data-source="provider1">
            <td class="tbl_col1">
                <a href="/Users/1090" id="UserLink" target="_blank">UserName1</a>           
            </td>
            <td class="tbl_col2">
                <a href="/UserPoints/1090" id="PointLink" target="_blank">1892 <span class="up_arrow">&nbsp;</span></a>             
            </td>           
          </tr>
          <tr data-source="provider2">
            <td class="tbl_col1">
                <a href="/Users/1090" id="UserLink" target="_blank">UserName2</a>           
            </td>
            <td class="tbl_col2">
                <a href="/UserPoints/1090" id="PointLink" target="_blank">3217 <span class="down_arrow">&nbsp;</span></a>               
            </td>           
         </tr>
        </tbody>
    </table>
</div>  

但我一直得到这样的结果：

provider1       UserName1       1892
provider2       UserName1       1892

---

您做出了错误的假设：

//a[@id='UserLink']/text（）

和

//a[@id='PointLink']/text（）

在整个文档中搜索。这就是为什么会得到第一个

tr

节点。只需使用：

string UserName = row.SelectSingleNode("td[@class='tbl_col1']/a[@id='UserLink']/text()").InnerText;
string Points = row.SelectSingleNode("td[@class='tbl_col2']/a[@id='PointLink']/text()").InnerText;

此外，您还可以真正简化代码的其余部分：

var UserTable = doc.DocumentNode.SelectNodes("//div[@id='mainDiv']/table[@id='tbl']/tbody/tr");
foreach (var row in UserTable)
{
    if (row.Attributes["data-source"] != null)
    {
        string Source = row.Attributes["data-source"].Value;
        string UserName = row.SelectSingleNode("td[@class='tbl_col1']/a[@id='UserLink']/text()").InnerText;
        string Points = row.SelectSingleNode("td[@class='tbl_col2']/a[@id='PointLink']/text()").InnerText;
        Console.WriteLine(Source + "\t" + UserName + "\t" + Points);
    }
}

var UserTable = doc.DocumentNode.SelectNodes("//div[@id='mainDiv']/table[@id='tbl']/tbody/tr");
foreach (var row in UserTable)
{
    if (row.Attributes["data-source"] != null)
    {
        string Source = row.Attributes["data-source"].Value;
        string UserName = row.SelectSingleNode("td[@class='tbl_col1']/a[@id='UserLink']/text()").InnerText;
        string Points = row.SelectSingleNode("td[@class='tbl_col2']/a[@id='PointLink']/text()").InnerText;
        Console.WriteLine(Source + "\t" + UserName + "\t" + Points);
    }
}