private void btnFacebookLogin_Click(object sender, EventArgs e)
        {
            var fbLoginDialog = new FacebookLoginDialog(AppId, extendedPermissions);
            fbLoginDialog.ShowDialog();

            DisplayAppropriateMessage(fbLoginDialog.FacebookOAuthResult);
        }
        private void btnFacebookLogin_Click(object sender, EventArgs e)
        {
            var fbLoginDialog = new FacebookLoginDialog(AppId, ExtendedPermissions);

            fbLoginDialog.ShowDialog();

            DisplayAppropriateMessage(fbLoginDialog.FacebookOAuthResult);
        }