How to Get Title, Description, Keywords Meta Tags and Image from URL in Asp.net

Introduction: In this article I will explain how we can Get Title, Description, Keywords Meta Tags and Image from URL in Asp.net.

Description:

In the last article i have explained How to Export Selected rows of Gridview to Excel, Word and PDF in Asp.net, Integrate Facebook Login authentication to website and Nested Gridview Example in Asp.net OR Gridview inside Gridview in asp.net.
Firstly download the” HtmlAgilitypake” DLL from  http://htmlagilitypack.codeplex.com.

Take a new project and put the DLL in Bin folder of Project. Bulid the project. After that add a new webform to project and design as mention below:

<table><tr><td style="width:200px;">Website Url:</td><td> <asp:TextBox ID="txtwebsiteurl" runat="server" Width="831px"></asp:TextBox></td>

</tr>

<tr><td>&nbsp;</td><td><asp:Button ID="btnGet" runat="server" Font-Bold="True" Font-Italic="True"

            onclick="btnGet_Click" Text="Fetch Details" /></td></tr>

            <tr><td>

            Title :</td><td> <asp:TextBox ID="txttitle" runat="server" Width="831px"></asp:TextBox></td></tr>

            <tr><td> Description:</td><td><asp:TextBox ID="txtdescription" runat="server" Height="118px" TextMode="MultiLine"

            Width="831px"></asp:TextBox></td></tr>

             <tr><td> Keywords:</td><td><asp:TextBox ID="txtkeywords" runat="server" Width="831px" TextMode="MultiLine"></asp:TextBox></td></tr>

            <tr><td> Image :</td><td> <asp:Image ID="Image1" runat="server" Height="250px" Width="831px" />           

            </td></tr>

            </table>

On button click (.aspx.cs) write the below given code:

using System.Net;

using System.Text.RegularExpressions;

using HtmlAgilityPack;

using System.IO;

protected void btnGet_Click(object sender, EventArgs e)

    {

        try

        {

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(new Uri(txtwebsiteurl.Text));

            request.Method = WebRequestMethods.Http.Get;

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            StreamReader reader = new StreamReader(response.GetResponseStream());

            String ResponseString = reader.ReadToEnd();

            response.Close();

            HtmlDocument DOC = new HtmlDocument();

            DOC.LoadHtml(ResponseString);

            String title = (from x in DOC.DocumentNode.Descendants()

                            where x.Name.ToLower() == "title"

                            select x.InnerText).FirstOrDefault();

            String desc = (from x in DOC.DocumentNode.Descendants()

                           where x.Name.ToLower() == "meta"

                           && x.Attributes["name"] != null

                           && x.Attributes["name"].Value.ToLower() == "description"

                           select x.Attributes["content"].Value).FirstOrDefault();

            String keywords = (from x in DOC.DocumentNode.Descendants()

                               where x.Name.ToLower() == "meta"

                               && x.Attributes["name"] != null

                               && x.Attributes["name"].Value.ToLower() == "keywords"

                               select x.Attributes["content"].Value).FirstOrDefault();

            List<String> imgs = (from x in DOC.DocumentNode.Descendants()

                                 where x.Name.ToLower() == "img"

                                 select x.Attributes["src"].Value).ToList<String>();

            txttitle.Text = title;

            txtdescription.Text = desc;

            txtkeywords.Text = keywords;

            Image1.ImageUrl = imgs[0];

        }

        catch (Exception ex)

        {

        }

    }
now run the project and check the result.

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