private void UpdateAccountInfoBlockHandler(Dropbox.Api.Users.FullAccount user)
        {
            if (user == null)
            {
                return;
            }

            //insert user info
            FULLNAME.Text = String.Format("Name : {0}", user.Name.DisplayName);
            EMAIL.Text    = String.Format("Email : {0}", user.Email);

            //Create image
            Image img    = new Image();
            Uri   imgUri = new Uri(user.ProfilePhotoUrl);

            img.Source = new BitmapImage(imgUri);
            PIC.Child  = img;
            PIC.UpdateLayout();
            this.Activate();
        }