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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="ScrapeHeadings" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Scraping Headings</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Panel ID="panUrl" runat="server" GroupingText="Search" CssClass="myPanel">
Enter Url:
<asp:TextBox ID="txtUrl" runat="server" Columns="50"></asp:TextBox><br />
<asp:Button ID="btnSearch" runat="server" OnClick="btnSearch_Click" Text="Search" />
</asp:Panel>
<asp:Panel ID="panHeadings"
runat="server"
GroupingText="Headings in this Url"
CssClass="myPanel" >
<asp:Literal ID="litContent" runat="server" />
</asp:Panel>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
public partial class ScrapeHeadings : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
litContent.Text = "";
}
protected void btnSearch_Click(object sender, EventArgs e)
{
try
{
WebClient client = new WebClient();
string content = client.DownloadString(txtUrl.Text);
Regex reg = new Regex(@"<h\d>.+</h\d>", RegexOptions.IgnoreCase);
MatchCollection mc = reg.Matches(content);
foreach (Match m in mc)
{
litContent.Text += HttpUtility.HtmlEncode(m.Value) + "<br/>";
}
}
catch
{
litContent.Text = "Could not connect to " + txtUrl.Text;
}
}
}
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