How to use Using the HtmlAgilityPack to get table value
http://w开发者_如何学Cww.dsebd.org/latest_PE_all2_08.php
i work on asp.net C# web.Above url contain some information ,i need to save them in my database and also need to save then in specified location as xml format.This url contain a table.I want to get this table value but how to retrieve value from this html table.
HtmlWeb htmlWeb = new HtmlWeb();
// Creates an HtmlDocument object from an URL
HtmlAgilityPack.HtmlDocument document = htmlWeb.Load("http://www.dsebd.org/latest_PE_all2_08.php");
I need help to get table information from this document .How to save this table value.Show me some syntax
public partial class WebForm3 : System.Web.UI.Page
{
private byte[] aRequestHTML;
private string myString = null;
protected System.Web.UI.WebControls.Label Label1;
private ArrayList a = new ArrayList();
protected void Page_Load(object sender, EventArgs e)
{
WebClient objWebClient = new WebClient();
aRequestHTML = objWebClient.DownloadData("http://www.dsebd.org/latest_PE_all2_08.php");
// creates UTf8 encoding object
UTF8Encoding utf8 = new UTF8Encoding();
// gets the UTF8 encoding of all the html we got in aRequestHTML
myString = utf8.GetString(aRequestHTML);
string html = @"
<html><head></head>
<body><div>
<table border=1>
<tr><td>sno</td><td>sname</td></tr>
<tr><td>111</td><td>abcde</td></tr>
<tr><td>213</td><td>ejkll</td></tr>
</table>
<table border=1>
<tr><td>adress</td><td>phoneno</td><td>note</td></tr>
<tr><td>asdlkj</td><td>121510</td><td>none</td></tr>
<tr><td>asdlkj</td><td>214545</td><td>none</td></tr>
</table>
</div></body>
</html>";
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(myString);
DataTable addressAndPhones;
foreach (var table in ParseAllTables(htmlDoc))
{
if (table.Columns.Contains("Trading Code") && table.Columns.Contains("Close Price"))
{
// You found the address and phone number table
addressAndPhones = table;
}
}
}
private static DataTable[] ParseAllTables(HtmlDocument doc)
{
var result = new List<DataTable>();
foreach (var table in doc.DocumentNode.Descendants("table"))
{
result.Add(ParseTable(table));
}
return result.ToArray();
}
private static DataTable ParseTable(HtmlNode table)
{
var result = new DataTable();
var rows = table.Descendants("tr");
var header = rows.Take(1).First();
foreach (var column in header.Descendants("td"))
{
result.Columns.Add(new DataColumn(column.InnerText, typeof(string)));
}
foreach (var row in rows.Skip(1))
{
var data = new List<string>();
foreach (var column in row.Descendants("td"))
{
data.Add(column.InnerText);
}
result.Rows.Add(data.ToArray());
}
return result;
}
}
In this way u can easily create a DataTable and then can save is DataBase.
加载中,请稍侯......
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