Fetch Gmail Contacts

Hi All, In this article, we will see how to fetch Gmail contacts list & show it in grid view. You need to follow below steps to complete this task

1. Download Google Data API Dlls
2. Extract Google MSI component
3. Implement Code to fetch contacts

Download Google Data API Dlls: Open the below link & click, download Google_Data_API_Setup_1.9.0.0.ms http://code.google.com/p/google-gdata/downloads/list

Extract Google MSI

Double click the downloaded MSI component & provide the path to extract the code. Usually it will extract into c:\Program file. To fetch the DLL, go to C:\Program Files\Google\Google Data API SDK\Samples

Implement Code to Fetch Contacts

1. Create a new website
2. Copy the below dll from above sample path & add below dll to your solution
1. Google.GData.Client
2. Google.GData.Contacts
3. Google.GData.Extensions
3. Add a new webpage to solution & name it as "contactlist.aspx" Now add the below grid view to the page

   <asp:GridView ID="GridView1" AutoGenerateColumns="true" 
       runat="server" BackColor="Aquamarine" ForeColor="Black" BorderColor="OrangeRed" 
       Font-Names="Comic Sans MS" Width="525">
                 <alternatingrowstyle backcolor="Aqua" />
   <HeaderStyle BackColor="Crimson" Font-Italic="false" ForeColor="Snow" />

4. Go to .aspx.cs page and following code & also add following to the class

   using Google.GData.Client;
   using Google.Contacts;
   using Google.GData.Extensions;
   
   private void FetchContactList()
       {
   	
           // Define string of list
         List<string> lstContacts = new List<string>();
   
   	  // Below requestsetting class take 3 parameters applicationname, gmail username, gmail password. 
   	  // Provide appropriate Gmail account details
           RequestSettings rsLoginInfo = new RequestSettings("", "suryabg2000@gmail.com", "XXXXXX");
           rsLoginInfo.AutoPaging = true;
   
           ContactsRequest cRequest = new ContactsRequest(rsLoginInfo);
   
           // fetch contacts list
           Feed<contact> feedContacts = cRequest.GetContacts();
   
   	 // looping the feedcontact entries
           foreach (Contact gmailAddresses in feedContacts.Entries)
           {
   
              // Looping to read email addresses
               foreach (EMail emailId in gmailAddresses.Emails)
               {
   		
                   lstContacts.Add(emailId.Address);
               }
   
           }
   
           // finally binding the list to gridview defined in above step
   
           GridView1.DataSource = lstContacts;
           GridView1.DataBind();
   
       }

Finally you will be able to see the data in the gridview Happy Koooding… Hope this helps!