Get facebook contacts on my application

[uswername]

Hello i want fb email id into my application then how can I get that Following is m asp.net code for that I am able to fetch my friends userid,name,photo.But i am unable to fetch my friend email id .how can I achive this ?Code:\[code\]protected void btnFetch_Click(object sender, EventArgs e){ FaceBookConnect.Authorize("user_photos,friends_photos", Request.Url.AbsoluteUri);}string data = http://stackoverflow.com/questions/14544595/FaceBookConnect.Fetch(code,"me/friends");FaceBookData facebookData = http://stackoverflow.com/questions/14544595/new JavaScriptSerializer().Deserialize<FaceBookData>(data);\[/code\]how can i achive email address????????