Importing Contact From Gmail Account.?

Google provide api for importing contact you have to download this from following URL:

http://code.google.com/p/google-gdata/downloads/detail?name=Google%20Data%20API%20Setup%20%281.6.0.0%29.msi

Here I write class file for that(“GContactsImport.cs”):

using System;

using System.Data;

using System.Configuration;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using Google.GData.Contacts;

using Google.GData.Client;

using Google.GData.Extensions;

using Google.Contacts;

namespace GmailContact

{

    public class GContactsImport

    {

        public static DataSet GetGmailContacts(string App_Name, string Uname, string UPassword)

        {

            DataSet ds = new DataSet();

            DataTable dt = new DataTable();

            DataColumn C2 = new DataColumn();

            C2.DataType = Type.GetType("System.String");

            C2.ColumnName = "EmailID";

            dt.Columns.Add(C2);

            RequestSettings rs = new RequestSettings(App_Name, Uname, UPassword);

            rs.AutoPaging = true;

            ContactsRequest cr = new ContactsRequest(rs);

            Feed<Contact> f = cr.GetContacts();

            foreach (Contact t in f.Entries)

            {

                foreach (EMail email in t.Emails)

                {

                    DataRow dr1 = dt.NewRow();

                    dr1["EmailID"] = email.Address.ToString();

                    dt.Rows.Add(dr1);

                }

            }

            ds.Tables.Add(dt);

            return ds;

        }

    }

}

Code behind file for that (“Populate Gcontacts.aspx.cs”):

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using Google.GData.Contacts;

using Google.GData.Client;

using Google.GData.Extensions;

using Google.Contacts;

namespace GmailContact

{

    public partial class PopulateGcontacts : System.Web.UI.Page

    {

        //GContactsImport

        protected void Page_Load(object sender, EventArgs e)

        {

string App_Name = "MyNetwork Web Application!";
string username = “testaccount@gmail.com”;

            string password = “testPassword”;

            DataSet ds = GContactsImport.GetGmailContacts(App_Name, username, password);

            GridView1.DataSource = ds;

            GridView1.DataBind(); 

        }

       

    }

}

 For any query fell free to ask....