title: Retrieve Email Id from FaceBook Login in vb.net application
body: <p>I want to integrate Facebook with my .net application which is in vb.
  I want to use facebook login as open id login to my application.
  I reached to login with fb and get all basic information of my facebook profile.
  But still I do not get facebook login id(means facebook login email id) in my user information detail retrieved from facebook.</p>
  
  <p>Please help me out to solve this.
  I get first name, last name and etc. but I want email id of facebook login or primary email address.</p>