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How to retrive the Contact from gmail using Google API in Asp.Net?

Published: 29 Jul 2011 By HemanthKumar V

What are the Google Contacts APIs? The Google Contacts APIs allow client applications and other data consumers to request Google Contacts content. If read-only access is sufficient for your needs, then consider using the Portable Contacts API. If you need write access to Google Contacts, then use the Data API. The two APIs supply the same information in different formats. Google Contacts Data API The Google Contacts Data API allows client applications to view and update Contacts content in th

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Google.GData.Client;

using Google.GData.Extensions;

using Google.GData.Contacts;

using Google.Contacts;

using System.Data;

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

{

protected void Page_Load(object sender, EventArgs e)

{

RequestSettings rs = new RequestSettings("Application Name", "abcd@gmail.com", "**********");

ContactsRequest cr = new ContactsRequest(rs);//Request All Contacts

rs.AutoPaging = true;

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

DataTable dt = new DataTable();

DataRow dr;

dt.Columns.Add("Name");

dt.Columns.Add("Home Emails");

dt.Columns.Add("Work Mails");

dt.Columns.Add("Other Mails");

dt.Columns.Add("Work Phone");

dt.Columns.Add("Other");

foreach (Contact contact in f.Entries)

{

dr = dt.NewRow();

Name n = contact.Name;

dr[0] = n.FullName;

string homeEmail = String.Empty;

string workEmail = String.Empty;

string otherEmail = String.Empty;

string homePhone = String.Empty;

string workPhone = String.Empty;

string otherPhone = String.Empty;

foreach (EMail email in contact.Emails)

{

if (email.Home == true)

{

if (homeEmail.Equals(""))

{

homeEmail += email.Address;

}

else

{

homeEmail += ",";

homeEmail += email.Address;

}

if (email.Work == true)

{

if (workEmail.Equals(""))

{

workEmail += email.Address;

}

else

{

workEmail += ",";

workEmail += email.Address;

}

else

{

if (otherEmail.Equals(""))

{

otherEmail += email.Address;

}

else

{

otherEmail += ",";

otherEmail += email.Address;

}

dr[1] = homeEmail;

dr[2] = workEmail;

dr[3] = otherEmail;

}

dt.Rows.Add(dr);

gv1.DataSource = dt;

gv1.DataBind();

}

}
<div>

<asp:GridView ID="gv1" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan"

BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None">

</asp:GridView>

</div>

asp.net C# 4.0 Google API

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How to retrive the Contact from gmail using Google API in Asp.Net?